<?xml version="1.0" encoding="US-ASCII" standalone="no"?>
    <!-- Field: Doc-Info; Name: Generator; Value: GoFiler Complete; Version: 6.1a -->
    <!-- Field: Doc-Info; Name: VendorURI; Value: https://www.novaworks.com -->
    <!-- Field: Doc-Info; Name: Status; Value: 0x00000000 -->
<link:linkbase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrli="http://www.xbrl.org/2003/instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#Cover" roleURI="http://duostechnologies.com/role/Cover" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#ConsolidatedBalanceSheets" roleURI="http://duostechnologies.com/role/ConsolidatedBalanceSheets" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#ConsolidatedBalanceSheetsParenthetical" roleURI="http://duostechnologies.com/role/ConsolidatedBalanceSheetsParenthetical" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#ConsolidatedStatementsOfOperations" roleURI="http://duostechnologies.com/role/ConsolidatedStatementsOfOperations" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#ConsolidatedStatementsOfChangesInStockholdersEquity" roleURI="http://duostechnologies.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#ConsolidatedStatementsOfCashFlows" roleURI="http://duostechnologies.com/role/ConsolidatedStatementsOfCashFlows" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#NatureOfOperationsAndSummaryOfSignificantAccountingPolicies" roleURI="http://duostechnologies.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPolicies" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#Liquidity" roleURI="http://duostechnologies.com/role/Liquidity" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#AccountsReceivable" roleURI="http://duostechnologies.com/role/AccountsReceivable" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#IntangibleAsset" roleURI="http://duostechnologies.com/role/IntangibleAsset" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#CashAdvancePaymentSawgrassHoldingsLlc" roleURI="http://duostechnologies.com/role/CashAdvancePaymentSawgrassHoldingsLlc" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#PropertyAndEquipment" roleURI="http://duostechnologies.com/role/PropertyAndEquipment" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#PatentsAndTrademarks" roleURI="http://duostechnologies.com/role/PatentsAndTrademarks" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#SoftwareDevelopmentCosts" roleURI="http://duostechnologies.com/role/SoftwareDevelopmentCosts" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#EquityInvestmentSawgrassAprHoldingsLlc" roleURI="http://duostechnologies.com/role/EquityInvestmentSawgrassAprHoldingsLlc" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#Debt" roleURI="http://duostechnologies.com/role/Debt" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#RevenuesAndContractAccounting" roleURI="http://duostechnologies.com/role/RevenuesAndContractAccounting" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#CommitmentsAndContingencies" roleURI="http://duostechnologies.com/role/CommitmentsAndContingencies" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#IncomeTaxes" roleURI="http://duostechnologies.com/role/IncomeTaxes" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#StockholdersEquity" roleURI="http://duostechnologies.com/role/StockholdersEquity" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#CommonStockOptionsAndWarrants" roleURI="http://duostechnologies.com/role/CommonStockOptionsAndWarrants" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#DefinedContributionPlan" roleURI="http://duostechnologies.com/role/DefinedContributionPlan" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#RelatedPartyTransactions" roleURI="http://duostechnologies.com/role/RelatedPartyTransactions" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#SaleOfAssets" roleURI="http://duostechnologies.com/role/SaleOfAssets" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#SubsequentEvents" roleURI="http://duostechnologies.com/role/SubsequentEvents" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#RevenueAndContractAccounting" roleURI="http://duostechnologies.com/role/RevenueAndContractAccounting" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#SegmentReporting" roleURI="http://duostechnologies.com/role/SegmentReporting" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesPolicies" roleURI="http://duostechnologies.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesPolicies" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesTables" roleURI="http://duostechnologies.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesTables" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#AccountsReceivableTables" roleURI="http://duostechnologies.com/role/AccountsReceivableTables" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#IntangibleAssetTables" roleURI="http://duostechnologies.com/role/IntangibleAssetTables" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#CashAdvancePaymentSawgrassHoldingsLlcTables" roleURI="http://duostechnologies.com/role/CashAdvancePaymentSawgrassHoldingsLlcTables" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#PropertyAndEquipmentTables" roleURI="http://duostechnologies.com/role/PropertyAndEquipmentTables" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#PatentsAndTrademarksTables" roleURI="http://duostechnologies.com/role/PatentsAndTrademarksTables" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#SoftwareDevelopmentCostsTables" roleURI="http://duostechnologies.com/role/SoftwareDevelopmentCostsTables" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#EquityInvestmentSawgrassAprHoldingsLlcTables" roleURI="http://duostechnologies.com/role/EquityInvestmentSawgrassAprHoldingsLlcTables" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#DebtTables" roleURI="http://duostechnologies.com/role/DebtTables" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#RevenuesAndContractAccountingTables" roleURI="http://duostechnologies.com/role/RevenuesAndContractAccountingTables" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#CommitmentsAndContingenciesTables" roleURI="http://duostechnologies.com/role/CommitmentsAndContingenciesTables" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#IncomeTaxesTables" roleURI="http://duostechnologies.com/role/IncomeTaxesTables" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#CommonStockOptionsAndWarrantsTables" roleURI="http://duostechnologies.com/role/CommonStockOptionsAndWarrantsTables" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#SaleOfAssetsTables" roleURI="http://duostechnologies.com/role/SaleOfAssetsTables" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#SubsequentEventsTables" roleURI="http://duostechnologies.com/role/SubsequentEventsTables" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#RevenueAndContractAccountingTables" roleURI="http://duostechnologies.com/role/RevenueAndContractAccountingTables" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#SegmentReportingTables" roleURI="http://duostechnologies.com/role/SegmentReportingTables" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesDetails-FairValueOfFinancialInstruments" roleURI="http://duostechnologies.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesDetails-FairValueOfFinancialInstruments" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesDetailsNarrative" roleURI="http://duostechnologies.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#LiquidityDetailsNarrative" roleURI="http://duostechnologies.com/role/LiquidityDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#AccountsReceivableDetails-AccountsReceivable" roleURI="http://duostechnologies.com/role/AccountsReceivableDetails-AccountsReceivable" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#AccountsReceivableDetails-AllowanceForDoubtfulAccounts" roleURI="http://duostechnologies.com/role/AccountsReceivableDetails-AllowanceForDoubtfulAccounts" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#AccountsReceivableDetailsNarrative" roleURI="http://duostechnologies.com/role/AccountsReceivableDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#IntangibleAssetDetails-IntangibleAsset" roleURI="http://duostechnologies.com/role/IntangibleAssetDetails-IntangibleAsset" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#IntangibleAssetDetails-FutureAmortization" roleURI="http://duostechnologies.com/role/IntangibleAssetDetails-FutureAmortization" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#IntangibleAssetDetailsNarrative" roleURI="http://duostechnologies.com/role/IntangibleAssetDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#CashAdvancePayment-SawgrassHoldingsLlcDetails" roleURI="http://duostechnologies.com/role/CashAdvancePayment-SawgrassHoldingsLlcDetails" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#CashAdvancePaymentSawgrassHoldingsLlcDetailsNarrative" roleURI="http://duostechnologies.com/role/CashAdvancePaymentSawgrassHoldingsLlcDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#PropertyAndEquipmentDetails-MajorClassesOfPropertyAndEquipment" roleURI="http://duostechnologies.com/role/PropertyAndEquipmentDetails-MajorClassesOfPropertyAndEquipment" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#PropertyAndEquipmentDetails-EstimatedFutureDepreciationExpenseOfSoftware" roleURI="http://duostechnologies.com/role/PropertyAndEquipmentDetails-EstimatedFutureDepreciationExpenseOfSoftware" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#PatentsAndTrademarksDetails-PatentsAndTrademarks" roleURI="http://duostechnologies.com/role/PatentsAndTrademarksDetails-PatentsAndTrademarks" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#PatentsAndTrademarksDetailsNarrative" roleURI="http://duostechnologies.com/role/PatentsAndTrademarksDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#SoftwareAndSoftwareDevelopmentCostsDetails-SoftwareDevelopmentCosts" roleURI="http://duostechnologies.com/role/SoftwareAndSoftwareDevelopmentCostsDetails-SoftwareDevelopmentCosts" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#SoftwareAndSoftwareDevelopmentCostsDetails-EstimatedFutureAmortization" roleURI="http://duostechnologies.com/role/SoftwareAndSoftwareDevelopmentCostsDetails-EstimatedFutureAmortization" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#SoftwareDevelopmentCostsDetailsNarrative" roleURI="http://duostechnologies.com/role/SoftwareDevelopmentCostsDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#EquityInvestment-SawgrassAprHoldingsLlcDetails" roleURI="http://duostechnologies.com/role/EquityInvestment-SawgrassAprHoldingsLlcDetails" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#EquityInvestmentSawgrassAprHoldingsLlcDetailsNarrative" roleURI="http://duostechnologies.com/role/EquityInvestmentSawgrassAprHoldingsLlcDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#DebtDetails-NotesPayable-FinancingAgreements" roleURI="http://duostechnologies.com/role/DebtDetails-NotesPayable-FinancingAgreements" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#DebtDetails-PromissoryNotesPayable" roleURI="http://duostechnologies.com/role/DebtDetails-PromissoryNotesPayable" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#DebtDetails-AssumptionsInDeterminingFairValueOfWarrantLiabilities" roleURI="http://duostechnologies.com/role/DebtDetails-AssumptionsInDeterminingFairValueOfWarrantLiabilities" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#DebtDetailsNarrative" roleURI="http://duostechnologies.com/role/DebtDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#RevenuesAndContractAccountingDetails-ContractAssets" roleURI="http://duostechnologies.com/role/RevenuesAndContractAccountingDetails-ContractAssets" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#RevenuesAndContractAccountingDetails-ContractLiabilities" roleURI="http://duostechnologies.com/role/RevenuesAndContractAccountingDetails-ContractLiabilities" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#RevenueAndContractAccountingDetails-ContractLiabilitiesAgreement" roleURI="http://duostechnologies.com/role/RevenueAndContractAccountingDetails-ContractLiabilitiesAgreement" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#RevenuesAndContractAccountingDetails-BalanceOfContractLiabilities" roleURI="http://duostechnologies.com/role/RevenuesAndContractAccountingDetails-BalanceOfContractLiabilities" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#RevenuesAndContractAccountingDetails-disaggregatedRevenue" roleURI="http://duostechnologies.com/role/RevenuesAndContractAccountingDetails-disaggregatedRevenue" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#RevenuesAndContractAccountingDetailsNarrative" roleURI="http://duostechnologies.com/role/RevenuesAndContractAccountingDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#CommitmentsAndContingenciesDetails-SupplementalInformationRelatedToLeases" roleURI="http://duostechnologies.com/role/CommitmentsAndContingenciesDetails-SupplementalInformationRelatedToLeases" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#CommitmentsAndContingenciesDetails-FutureMinimumLeasePayments" roleURI="http://duostechnologies.com/role/CommitmentsAndContingenciesDetails-FutureMinimumLeasePayments" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#CommitmentsAndContingenciesDetailsNarrative" roleURI="http://duostechnologies.com/role/CommitmentsAndContingenciesDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#IncomeTaxesDetails-ProvisionForIncomeTaxes" roleURI="http://duostechnologies.com/role/IncomeTaxesDetails-ProvisionForIncomeTaxes" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#IncomeTaxesDetails-DeferredTaxAssets" roleURI="http://duostechnologies.com/role/IncomeTaxesDetails-DeferredTaxAssets" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#IncomeTaxesDetailsNarrative" roleURI="http://duostechnologies.com/role/IncomeTaxesDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#StockholdersEquityDetailsNarrative" roleURI="http://duostechnologies.com/role/StockholdersEquityDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#CommonStockOptionsAndWarrantsDetails-OptionsActivity" roleURI="http://duostechnologies.com/role/CommonStockOptionsAndWarrantsDetails-OptionsActivity" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#CommonStockOptionsAndWarrantsDetails-FairValueAssumptions" roleURI="http://duostechnologies.com/role/CommonStockOptionsAndWarrantsDetails-FairValueAssumptions" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#CommonStockOptionsAndWarrantsDetailsNarrative" roleURI="http://duostechnologies.com/role/CommonStockOptionsAndWarrantsDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#DefinedContributionPlanDetailsNarrative" roleURI="http://duostechnologies.com/role/DefinedContributionPlanDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#RelatedPartyTransactionsDetailsNarrative" roleURI="http://duostechnologies.com/role/RelatedPartyTransactionsDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#SaleOfAssetsDetails" roleURI="http://duostechnologies.com/role/SaleOfAssetsDetails" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#SaleOfAssetsDetailsNarrative" roleURI="http://duostechnologies.com/role/SaleOfAssetsDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#Disclosure-intangibleAssetDetails-FutureAmortization" roleURI="http://duostechnologies.com/role/Disclosure-intangibleAssetDetails-FutureAmortization" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#StockholdersEquityDetails" roleURI="http://duostechnologies.com/role/StockholdersEquityDetails" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#StockholdersEquityDetails1" roleURI="http://duostechnologies.com/role/StockholdersEquityDetails1" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#StockholdersEquityDetails-NonPlanOptions" roleURI="http://duostechnologies.com/role/StockholdersEquityDetails-NonPlanOptions" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#StockholdersEquityDetails-Warrants" roleURI="http://duostechnologies.com/role/StockholdersEquityDetails-Warrants" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#SubsequentEventsDetailsNarrative" roleURI="http://duostechnologies.com/role/SubsequentEventsDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#RevenueAndContractAccountingDetails-ContractAssets" roleURI="http://duostechnologies.com/role/RevenueAndContractAccountingDetails-ContractAssets" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#RevenueAndContractAccountingDetails-ContractLiabilities" roleURI="http://duostechnologies.com/role/RevenueAndContractAccountingDetails-ContractLiabilities" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#RevenueAndContractAccountingDetails-ContractLiabilitiesInterest" roleURI="http://duostechnologies.com/role/RevenueAndContractAccountingDetails-ContractLiabilitiesInterest" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#RevenueAndContractAccountingDetails-DisaggregatedRevenue" roleURI="http://duostechnologies.com/role/RevenueAndContractAccountingDetails-DisaggregatedRevenue" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#RevenueAndContractAccountingDetailsNarrative" roleURI="http://duostechnologies.com/role/RevenueAndContractAccountingDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="duot-20250331.xsd#SegmentReportingDetails" roleURI="http://duostechnologies.com/role/SegmentReportingDetails" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/Cover" xlink:title="00000001 - Document - Cover" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/ConsolidatedBalanceSheets" xlink:title="00000002 - Statement - CONSOLIDATED BALANCE SHEETS (Unaudited)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaapAssetsCurrent" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Cash" xlink:label="loc_us-gaapCash" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsCurrent" xlink:to="loc_us-gaapCash" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractWithCustomerAssetNetCurrent" xlink:label="loc_us-gaapContractWithCustomerAssetNetCurrent" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsCurrent" xlink:to="loc_us-gaapContractWithCustomerAssetNetCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaapInventoryNet" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsCurrent" xlink:to="loc_us-gaapInventoryNet" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="loc_us-gaapPrepaidExpenseAndOtherAssetsCurrent" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsCurrent" xlink:to="loc_us-gaapPrepaidExpenseAndOtherAssetsCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ReceivablesNetCurrent" xlink:label="loc_us-gaapReceivablesNetCurrent" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsCurrent" xlink:to="loc_us-gaapReceivablesNetCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaapAccountsReceivableNetCurrent" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsCurrent" xlink:to="loc_us-gaapAccountsReceivableNetCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_AccountsReceivableNetRelatedParties" xlink:label="loc_duotAccountsReceivableNetRelatedParties" />
      <link:calculationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsCurrent" xlink:to="loc_duotAccountsReceivableNetRelatedParties" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherAssets" xlink:label="loc_us-gaapOtherAssets" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NotesAndLoansReceivableNetNoncurrent" xlink:label="loc_us-gaapNotesAndLoansReceivableNetNoncurrent" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOtherAssets" xlink:to="loc_us-gaapNotesAndLoansReceivableNetNoncurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityMethodInvestments" xlink:label="loc_us-gaapEquityMethodInvestments" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOtherAssets" xlink:to="loc_us-gaapEquityMethodInvestments" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherIntangibleAssetsNet" xlink:label="loc_us-gaapOtherIntangibleAssetsNet" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOtherAssets" xlink:to="loc_us-gaapOtherIntangibleAssetsNet" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="loc_us-gaapIntangibleAssetsNetExcludingGoodwill" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOtherAssets" xlink:to="loc_us-gaapIntangibleAssetsNetExcludingGoodwill" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_CapitalizedSoftwareDevelopmentCostsForSoftwareSoldToCustomer" xlink:label="loc_duotCapitalizedSoftwareDevelopmentCostsForSoftwareSoldToCustomer" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOtherAssets" xlink:to="loc_duotCapitalizedSoftwareDevelopmentCostsForSoftwareSoldToCustomer" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Assets" xlink:label="loc_us-gaapAssets" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapAssetsCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InventoryNoncurrent" xlink:label="loc_us-gaapInventoryNoncurrent" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapInventoryNoncurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaapPropertyPlantAndEquipmentNet" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapPropertyPlantAndEquipmentNet" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:label="loc_us-gaapOperatingLeaseRightOfUseAsset" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapOperatingLeaseRightOfUseAsset" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_FinancingLeaseRightOfUseAssetEdgeDataCenters" xlink:label="loc_duotFinancingLeaseRightOfUseAssetEdgeDataCenters" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_duotFinancingLeaseRightOfUseAssetEdgeDataCenters" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SecurityDeposit" xlink:label="loc_us-gaapSecurityDeposit" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapSecurityDeposit" xlink:type="arc" weight="1" />
      <link:calculationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapOtherAssets" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaapLiabilitiesCurrent" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaapAccountsPayableCurrent" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapAccountsPayableCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_NotesPayableFinancingAgreements" xlink:label="loc_duotNotesPayableFinancingAgreements" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_duotNotesPayableFinancingAgreements" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="loc_us-gaapAccruedLiabilitiesCurrent" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapAccruedLiabilitiesCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseLiabilityCurrent" xlink:label="loc_us-gaapOperatingLeaseLiabilityCurrent" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapOperatingLeaseLiabilityCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_LeaseObligationEdgeDataCentersCurrentPortion" xlink:label="loc_duotLeaseObligationEdgeDataCentersCurrentPortion" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_duotLeaseObligationEdgeDataCentersCurrentPortion" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_NotesPayableCurrentNetOfDiscounts" xlink:label="loc_duotNotesPayableCurrentNetOfDiscounts" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_duotNotesPayableCurrentNetOfDiscounts" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractWithCustomerLiabilityCurrent" xlink:label="loc_us-gaapContractWithCustomerLiabilityCurrent" />
      <link:calculationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapContractWithCustomerLiabilityCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_ContractLiabilitiesCurrent" xlink:label="loc_duotContractLiabilitiesCurrent" />
      <link:calculationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_duotContractLiabilitiesCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_ContractLiabilitiesCurrentRelatedParties" xlink:label="loc_duotContractLiabilitiesCurrentRelatedParties" />
      <link:calculationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_duotContractLiabilitiesCurrentRelatedParties" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaapLiabilities" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilities" xlink:to="loc_us-gaapLiabilitiesCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractWithCustomerLiabilityNoncurrent" xlink:label="loc_us-gaapContractWithCustomerLiabilityNoncurrent" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilities" xlink:to="loc_us-gaapContractWithCustomerLiabilityNoncurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:label="loc_us-gaapOperatingLeaseLiabilityNoncurrent" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilities" xlink:to="loc_us-gaapOperatingLeaseLiabilityNoncurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_LeaseObligationEdgeDataCentersLessCurrentPortion" xlink:label="loc_duotLeaseObligationEdgeDataCentersLessCurrentPortion" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilities" xlink:to="loc_duotLeaseObligationEdgeDataCentersLessCurrentPortion" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_ContractLiabilitiesLessCurrentPortion" xlink:label="loc_duotContractLiabilitiesLessCurrentPortion" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilities" xlink:to="loc_duotContractLiabilitiesLessCurrentPortion" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_ContractLiabilitiesLessCurrentPortionRelatedParties" xlink:label="loc_duotContractLiabilitiesLessCurrentPortionRelatedParties" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilities" xlink:to="loc_duotContractLiabilitiesLessCurrentPortionRelatedParties" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_TotalStockAndPaidInCapitalAndRetainedEarningsDeficit" xlink:label="loc_duotTotalStockAndPaidInCapitalAndRetainedEarningsDeficit" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PreferredStockValue" xlink:label="loc_us-gaapPreferredStockValue" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_duotTotalStockAndPaidInCapitalAndRetainedEarningsDeficit" xlink:to="loc_us-gaapPreferredStockValue" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaapCommonStockValue" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_duotTotalStockAndPaidInCapitalAndRetainedEarningsDeficit" xlink:to="loc_us-gaapCommonStockValue" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="loc_us-gaapAdditionalPaidInCapital" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_duotTotalStockAndPaidInCapitalAndRetainedEarningsDeficit" xlink:to="loc_us-gaapAdditionalPaidInCapital" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaapRetainedEarningsAccumulatedDeficit" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_duotTotalStockAndPaidInCapitalAndRetainedEarningsDeficit" xlink:to="loc_us-gaapRetainedEarningsAccumulatedDeficit" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaapStockholdersEquity" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapStockholdersEquity" xlink:to="loc_duotTotalStockAndPaidInCapitalAndRetainedEarningsDeficit" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TreasuryStockCommonValue" xlink:label="loc_us-gaapTreasuryStockCommonValue" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapStockholdersEquity" xlink:to="loc_us-gaapTreasuryStockCommonValue" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaapLiabilitiesAndStockholdersEquity" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesAndStockholdersEquity" xlink:to="loc_us-gaapLiabilities" xlink:type="arc" weight="1" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesAndStockholdersEquity" xlink:to="loc_us-gaapStockholdersEquity" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:title="00000003 - Statement - CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/ConsolidatedStatementsOfOperations" xlink:title="00000004 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaapGrossProfit" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Revenues" xlink:label="loc_us-gaapRevenues" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapGrossProfit" xlink:to="loc_us-gaapRevenues" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CostOfRevenue" xlink:label="loc_us-gaapCostOfRevenue" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapGrossProfit" xlink:to="loc_us-gaapCostOfRevenue" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingCostsAndExpenses" xlink:label="loc_us-gaapOperatingCostsAndExpenses" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SellingAndMarketingExpense" xlink:label="loc_us-gaapSellingAndMarketingExpense" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingCostsAndExpenses" xlink:to="loc_us-gaapSellingAndMarketingExpense" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ResearchAndDevelopmentExpense" xlink:label="loc_us-gaapResearchAndDevelopmentExpense" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingCostsAndExpenses" xlink:to="loc_us-gaapResearchAndDevelopmentExpense" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="loc_us-gaapGeneralAndAdministrativeExpense" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingCostsAndExpenses" xlink:to="loc_us-gaapGeneralAndAdministrativeExpense" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaapOperatingIncomeLoss" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingIncomeLoss" xlink:to="loc_us-gaapGrossProfit" xlink:type="arc" weight="1" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingIncomeLoss" xlink:to="loc_us-gaapOperatingCostsAndExpenses" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NonoperatingIncomeExpense" xlink:label="loc_us-gaapNonoperatingIncomeExpense" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestExpenseNonoperating" xlink:label="loc_us-gaapInterestExpenseNonoperating" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNonoperatingIncomeExpense" xlink:to="loc_us-gaapInterestExpenseNonoperating" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAdjustmentOfWarrants" xlink:label="loc_us-gaapFairValueAdjustmentOfWarrants" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNonoperatingIncomeExpense" xlink:to="loc_us-gaapFairValueAdjustmentOfWarrants" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_GainOnExtinguishmentOfWarrantLiabilities" xlink:label="loc_duotGainOnExtinguishmentOfWarrantLiabilities" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNonoperatingIncomeExpense" xlink:to="loc_duotGainOnExtinguishmentOfWarrantLiabilities" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaapOtherNonoperatingIncomeExpense" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNonoperatingIncomeExpense" xlink:to="loc_us-gaapOtherNonoperatingIncomeExpense" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaapNetIncomeLoss" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetIncomeLoss" xlink:to="loc_us-gaapOperatingIncomeLoss" xlink:type="arc" weight="1" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetIncomeLoss" xlink:to="loc_us-gaapNonoperatingIncomeExpense" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" xlink:title="00000005 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS&apos; EQUITY (Unaudited)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/ConsolidatedStatementsOfCashFlows" xlink:title="00000006 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaapNetIncomeLoss" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapNetIncomeLoss" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DepreciationAndAmortization" xlink:label="loc_us-gaapDepreciationAndAmortization" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapDepreciationAndAmortization" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaapShareBasedCompensation" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapShareBasedCompensation" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims" xlink:label="loc_us-gaapIssuanceOfStockAndWarrantsForServicesOrClaims" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIssuanceOfStockAndWarrantsForServicesOrClaims" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_AmortizationOfDebtDiscountRelatedToWarrantLiabilities" xlink:label="loc_duotAmortizationOfDebtDiscountRelatedToWarrantLiabilities" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_duotAmortizationOfDebtDiscountRelatedToWarrantLiabilities" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAdjustmentOfWarrants" xlink:label="loc_us-gaapFairValueAdjustmentOfWarrants" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapFairValueAdjustmentOfWarrants" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LifeSettlementContractsFairValueMethodGainLoss" xlink:label="loc_us-gaapLifeSettlementContractsFairValueMethodGainLoss" />
      <link:calculationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapLifeSettlementContractsFairValueMethodGainLoss" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_AmortizationOfDebtDiscountRelatedToWarrantLiability" xlink:label="loc_duotAmortizationOfDebtDiscountRelatedToWarrantLiability" />
      <link:calculationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_duotAmortizationOfDebtDiscountRelatedToWarrantLiability" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_AmortizationOfLeaseRightOfUseAssetEdgeDataCenters" xlink:label="loc_duotAmortizationOfLeaseRightOfUseAssetEdgeDataCenters" />
      <link:calculationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_duotAmortizationOfLeaseRightOfUseAssetEdgeDataCenters" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProvisionForOtherCreditLosses" xlink:label="loc_us-gaapProvisionForOtherCreditLosses" />
      <link:calculationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapProvisionForOtherCreditLosses" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromSaleOfNotesReceivable" xlink:label="loc_us-gaapProceedsFromSaleOfNotesReceivable" />
      <link:calculationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapProceedsFromSaleOfNotesReceivable" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InventoryWriteDown" xlink:label="loc_us-gaapInventoryWriteDown" />
      <link:calculationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapInventoryWriteDown" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInReceivables" xlink:label="loc_us-gaapIncreaseDecreaseInReceivables" />
      <link:calculationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInReceivables" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInNotesReceivableCurrent" xlink:label="loc_us-gaapIncreaseDecreaseInNotesReceivableCurrent" />
      <link:calculationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInNotesReceivableCurrent" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerAsset" xlink:label="loc_us-gaapIncreaseDecreaseInContractWithCustomerAsset" />
      <link:calculationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInContractWithCustomerAsset" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="loc_us-gaapIncreaseDecreaseInInventories" />
      <link:calculationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInInventories" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInSecurityDeposits" xlink:label="loc_us-gaapIncreaseDecreaseInSecurityDeposits" />
      <link:calculationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInSecurityDeposits" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="loc_us-gaapIncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" />
      <link:calculationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="loc_us-gaapIncreaseDecreaseInAccountsPayable" />
      <link:calculationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInAccountsPayable" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="loc_us-gaapIncreaseDecreaseInAccruedLiabilities" />
      <link:calculationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInAccruedLiabilities" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInOperatingLeaseLiability" xlink:label="loc_us-gaapIncreaseDecreaseInOperatingLeaseLiability" />
      <link:calculationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInOperatingLeaseLiability" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromLongTermCapitalLeaseObligations" xlink:label="loc_us-gaapProceedsFromLongTermCapitalLeaseObligations" />
      <link:calculationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapProceedsFromLongTermCapitalLeaseObligations" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability" xlink:label="loc_us-gaapIncreaseDecreaseInContractWithCustomerLiability" />
      <link:calculationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInContractWithCustomerLiability" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_IncreaseDecreaseInReceivablesRealatedParties" xlink:label="loc_duotIncreaseDecreaseInReceivablesRealatedParties" />
      <link:calculationArc order="24" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_duotIncreaseDecreaseInReceivablesRealatedParties" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsToAcquireIntangibleAssets" xlink:label="loc_us-gaapPaymentsToAcquireIntangibleAssets" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" xlink:to="loc_us-gaapPaymentsToAcquireIntangibleAssets" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsToDevelopSoftware" xlink:label="loc_us-gaapPaymentsToDevelopSoftware" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" xlink:to="loc_us-gaapPaymentsToDevelopSoftware" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaapPaymentsToAcquirePropertyPlantAndEquipment" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" xlink:to="loc_us-gaapPaymentsToAcquirePropertyPlantAndEquipment" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_RepaymentsOnFinancingAgreements" xlink:label="loc_duotRepaymentsOnFinancingAgreements" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_duotRepaymentsOnFinancingAgreements" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_RepaymentsOfLongTermCapitalLeaseObligation" xlink:label="loc_duotRepaymentsOfLongTermCapitalLeaseObligation" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_duotRepaymentsOfLongTermCapitalLeaseObligation" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromNotesPayable" xlink:label="loc_us-gaapProceedsFromNotesPayable" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapProceedsFromNotesPayable" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromWarrantExercises" xlink:label="loc_us-gaapProceedsFromWarrantExercises" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapProceedsFromWarrantExercises" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="loc_us-gaapProceedsFromIssuanceOfCommonStock" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapProceedsFromIssuanceOfCommonStock" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_IssuanceCosts" xlink:label="loc_duotIssuanceCosts" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_duotIssuanceCosts" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromRepaymentOfLoansByEmployeeStockOwnershipPlans" xlink:label="loc_us-gaapProceedsFromRepaymentOfLoansByEmployeeStockOwnershipPlans" />
      <link:calculationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapProceedsFromRepaymentOfLoansByEmployeeStockOwnershipPlans" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock" xlink:label="loc_us-gaapProceedsFromIssuanceOfPreferredStockAndPreferenceStock" />
      <link:calculationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapProceedsFromIssuanceOfPreferredStockAndPreferenceStock" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RepaymentsOfNotesPayable" xlink:label="loc_us-gaapRepaymentsOfNotesPayable" />
      <link:calculationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapRepaymentsOfNotesPayable" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:label="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:to="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:type="arc" weight="1" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:to="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" xlink:type="arc" weight="1" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:to="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPolicies" xlink:title="999007 - Disclosure - NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/Liquidity" xlink:title="999008 - Disclosure - LIQUIDITY" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/AccountsReceivable" xlink:title="999009 - Disclosure - ACCOUNTS RECEIVABLE" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/IntangibleAsset" xlink:title="999010 - Disclosure - INTANGIBLE ASSET" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/CashAdvancePaymentSawgrassHoldingsLlc" xlink:title="999011 - Disclosure - CASH ADVANCE PAYMENT &#8211; SAWGRASS HOLDINGS LLC" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/PropertyAndEquipment" xlink:title="999012 - Disclosure - PROPERTY AND EQUIPMENT" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/PatentsAndTrademarks" xlink:title="999013 - Disclosure - PATENTS AND TRADEMARKS" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/SoftwareDevelopmentCosts" xlink:title="999014 - Disclosure - SOFTWARE DEVELOPMENT COSTS" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/EquityInvestmentSawgrassAprHoldingsLlc" xlink:title="999015 - Disclosure - EQUITY INVESTMENT &#8211; SAWGRASS APR HOLDINGS LLC" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/Debt" xlink:title="999016 - Disclosure - DEBT" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/RevenuesAndContractAccounting" xlink:title="999017 - Disclosure - REVENUES AND CONTRACT ACCOUNTING" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/CommitmentsAndContingencies" xlink:title="999018 - Disclosure - COMMITMENTS AND CONTINGENCIES" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/IncomeTaxes" xlink:title="999019 - Disclosure - INCOME TAXES" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/StockholdersEquity" xlink:title="999020 - Disclosure - STOCKHOLDERS&#8217; EQUITY" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/CommonStockOptionsAndWarrants" xlink:title="999021 - Disclosure - COMMON STOCK OPTIONS AND WARRANTS" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/DefinedContributionPlan" xlink:title="999022 - Disclosure - DEFINED CONTRIBUTION PLAN" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/RelatedPartyTransactions" xlink:title="999023 - Disclosure - RELATED PARTY TRANSACTIONS" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/SaleOfAssets" xlink:title="999024 - Disclosure - SALE OF ASSETS" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/SubsequentEvents" xlink:title="999025 - Disclosure - SUBSEQUENT EVENTS" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/RevenueAndContractAccounting" xlink:title="999026 - Disclosure - REVENUE AND CONTRACT ACCOUNTING" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/SegmentReporting" xlink:title="999027 - Disclosure - SEGMENT REPORTING" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesPolicies" xlink:title="999028 - Disclosure - NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesTables" xlink:title="999029 - Disclosure - NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/AccountsReceivableTables" xlink:title="999030 - Disclosure - ACCOUNTS RECEIVABLE (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/IntangibleAssetTables" xlink:title="999031 - Disclosure - INTANGIBLE ASSET (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/CashAdvancePaymentSawgrassHoldingsLlcTables" xlink:title="999032 - Disclosure - CASH ADVANCE PAYMENT &#8211; SAWGRASS HOLDINGS LLC (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/PropertyAndEquipmentTables" xlink:title="999033 - Disclosure - PROPERTY AND EQUIPMENT (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/PatentsAndTrademarksTables" xlink:title="999034 - Disclosure - PATENTS AND TRADEMARKS (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/SoftwareDevelopmentCostsTables" xlink:title="999035 - Disclosure - SOFTWARE DEVELOPMENT COSTS (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/EquityInvestmentSawgrassAprHoldingsLlcTables" xlink:title="999036 - Disclosure - EQUITY INVESTMENT &#8211; SAWGRASS APR HOLDINGS LLC (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/DebtTables" xlink:title="999037 - Disclosure - DEBT (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/RevenuesAndContractAccountingTables" xlink:title="999038 - Disclosure - REVENUES AND CONTRACT ACCOUNTING (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/CommitmentsAndContingenciesTables" xlink:title="999039 - Disclosure - COMMITMENTS AND CONTINGENCIES (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/IncomeTaxesTables" xlink:title="999040 - Disclosure - INCOME TAXES (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/CommonStockOptionsAndWarrantsTables" xlink:title="999041 - Disclosure - COMMON STOCK OPTIONS AND WARRANTS (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/SaleOfAssetsTables" xlink:title="999042 - Disclosure - SALE OF ASSETS (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/SubsequentEventsTables" xlink:title="999043 - Disclosure - SUBSEQUENT EVENTS (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/RevenueAndContractAccountingTables" xlink:title="999044 - Disclosure - REVENUE AND CONTRACT ACCOUNTING (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/SegmentReportingTables" xlink:title="999045 - Disclosure - SEGMENT REPORTING (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesDetails-FairValueOfFinancialInstruments" xlink:title="999046 - Disclosure - NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details - Fair value of financial instruments)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/NatureOfOperationsAndSummaryOfSignificantAccountingPoliciesDetailsNarrative" xlink:title="999047 - Disclosure - NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/LiquidityDetailsNarrative" xlink:title="999048 - Disclosure - LIQUIDITY (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/AccountsReceivableDetails-AccountsReceivable" xlink:title="999049 - Disclosure - ACCOUNTS RECEIVABLE (Details- Accounts receivable)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsReceivableNet" xlink:label="loc_us-gaapAccountsReceivableNet" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivable" xlink:label="loc_us-gaapAllowanceForDoubtfulAccountsReceivable" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAccountsReceivableNet" xlink:to="loc_us-gaapAllowanceForDoubtfulAccountsReceivable" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsReceivableGross" xlink:label="loc_us-gaapAccountsReceivableGross" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAccountsReceivableNet" xlink:to="loc_us-gaapAccountsReceivableGross" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_AccountsReceivableRelatedParty" xlink:label="loc_duotAccountsReceivableRelatedParty" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAccountsReceivableNet" xlink:to="loc_duotAccountsReceivableRelatedParty" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/AccountsReceivableDetails-AllowanceForDoubtfulAccounts" xlink:title="999050 - Disclosure - ACCOUNTS RECEIVABLE (Details- Allowance for doubtful accounts)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/AccountsReceivableDetailsNarrative" xlink:title="999051 - Disclosure - ACCOUNTS RECEIVABLE (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/IntangibleAssetDetails-IntangibleAsset" xlink:title="999052 - Disclosure - INTANGIBLE ASSET (Details - Intangible Asset)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaapFiniteLivedIntangibleAssetsNet" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="loc_us-gaapFiniteLivedIntangibleAssetsGross" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapFiniteLivedIntangibleAssetsNet" xlink:to="loc_us-gaapFiniteLivedIntangibleAssetsGross" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_us-gaapFiniteLivedIntangibleAssetsAccumulatedAmortization" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapFiniteLivedIntangibleAssetsNet" xlink:to="loc_us-gaapFiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:type="arc" weight="-1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/IntangibleAssetDetails-FutureAmortization" xlink:title="999053 - Disclosure - INTANGIBLE ASSET (Details - Future amortization)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/IntangibleAssetDetailsNarrative" xlink:title="999054 - Disclosure - INTANGIBLE ASSET (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/CashAdvancePayment-SawgrassHoldingsLlcDetails" xlink:title="999055 - Disclosure - CASH ADVANCE PAYMENT - SAWGRASS HOLDINGS LLC (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/CashAdvancePaymentSawgrassHoldingsLlcDetailsNarrative" xlink:title="999056 - Disclosure - CASH ADVANCE PAYMENT &#8211; SAWGRASS HOLDINGS LLC (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/PropertyAndEquipmentDetails-MajorClassesOfPropertyAndEquipment" xlink:title="999057 - Disclosure - PROPERTY AND EQUIPMENT (Details - Major classes of property and equipment)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/PropertyAndEquipmentDetails-EstimatedFutureDepreciationExpenseOfSoftware" xlink:title="999058 - Disclosure - PROPERTY AND EQUIPMENT (Details - Estimated future depreciation expense of software)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/PatentsAndTrademarksDetails-PatentsAndTrademarks" xlink:title="999059 - Disclosure - PATENTS AND TRADEMARKS (Details - Patents and trademarks)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaapFiniteLivedIntangibleAssetsNet" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="loc_us-gaapFiniteLivedIntangibleAssetsGross" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapFiniteLivedIntangibleAssetsNet" xlink:to="loc_us-gaapFiniteLivedIntangibleAssetsGross" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_us-gaapFiniteLivedIntangibleAssetsAccumulatedAmortization" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapFiniteLivedIntangibleAssetsNet" xlink:to="loc_us-gaapFiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:type="arc" weight="-1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/PatentsAndTrademarksDetailsNarrative" xlink:title="999060 - Disclosure - PATENTS AND TRADEMARKS (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/SoftwareAndSoftwareDevelopmentCostsDetails-SoftwareDevelopmentCosts" xlink:title="999061 - Disclosure - SOFTWARE AND SOFTWARE DEVELOPMENT COSTS (Details - Software development costs)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/SoftwareAndSoftwareDevelopmentCostsDetails-EstimatedFutureAmortization" xlink:title="999062 - Disclosure - SOFTWARE AND SOFTWARE DEVELOPMENT COSTS (Details - Estimated future amortization)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/SoftwareDevelopmentCostsDetailsNarrative" xlink:title="999063 - Disclosure - SOFTWARE DEVELOPMENT COSTS (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/EquityInvestment-SawgrassAprHoldingsLlcDetails" xlink:title="999064 - Disclosure - EQUITY INVESTMENT - SAWGRASS APR HOLDINGS LLC (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/EquityInvestmentSawgrassAprHoldingsLlcDetailsNarrative" xlink:title="999065 - Disclosure - EQUITY INVESTMENT &#8211; SAWGRASS APR HOLDINGS LLC (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/DebtDetails-NotesPayable-FinancingAgreements" xlink:title="999066 - Disclosure - DEBT (Details - Notes payable - financing agreements)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/DebtDetails-PromissoryNotesPayable" xlink:title="999067 - Disclosure - DEBT (Details - Promissory Notes Payable)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/DebtDetails-AssumptionsInDeterminingFairValueOfWarrantLiabilities" xlink:title="999068 - Disclosure - DEBT (Details - Assumptions in determining the fair value of the warrant liabilities)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/DebtDetailsNarrative" xlink:title="999069 - Disclosure - DEBT (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/RevenuesAndContractAccountingDetails-ContractAssets" xlink:title="999070 - Disclosure - REVENUES AND CONTRACT ACCOUNTING (Details - Contract assets)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractWithCustomerAssetNetCurrent" xlink:label="loc_us-gaapContractWithCustomerAssetNetCurrent" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_CumulativeRevenueRecognized" xlink:label="loc_duotCumulativeRevenueRecognized" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapContractWithCustomerAssetNetCurrent" xlink:to="loc_duotCumulativeRevenueRecognized" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_BillingsOrCashReceived" xlink:label="loc_duotBillingsOrCashReceived" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapContractWithCustomerAssetNetCurrent" xlink:to="loc_duotBillingsOrCashReceived" xlink:type="arc" weight="-1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/RevenuesAndContractAccountingDetails-ContractLiabilities" xlink:title="999071 - Disclosure - REVENUES AND CONTRACT ACCOUNTING (Details - Contract liabilities)">
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_ContractLiabilitiesTechnologiesSystems" xlink:label="loc_duotContractLiabilitiesTechnologiesSystems" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_BillingsAndorCashReceiptsOnUncompletedContracts" xlink:label="loc_duotBillingsAndorCashReceiptsOnUncompletedContracts" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_duotContractLiabilitiesTechnologiesSystems" xlink:to="loc_duotBillingsAndorCashReceiptsOnUncompletedContracts" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_CumulativeRevenuesRecognized" xlink:label="loc_duotCumulativeRevenuesRecognized" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_duotContractLiabilitiesTechnologiesSystems" xlink:to="loc_duotCumulativeRevenuesRecognized" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractWithCustomerLiabilityCurrent" xlink:label="loc_us-gaapContractWithCustomerLiabilityCurrent" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapContractWithCustomerLiabilityCurrent" xlink:to="loc_duotContractLiabilitiesTechnologiesSystems" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_ContractLiabilitiesServicesAndConsulting" xlink:label="loc_duotContractLiabilitiesServicesAndConsulting" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapContractWithCustomerLiabilityCurrent" xlink:to="loc_duotContractLiabilitiesServicesAndConsulting" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/RevenueAndContractAccountingDetails-ContractLiabilitiesAgreement" xlink:title="999072 - Disclosure - REVENUE AND CONTRACT ACCOUNTING (Details - Contract liabilities agreement)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/RevenuesAndContractAccountingDetails-BalanceOfContractLiabilities" xlink:title="999073 - Disclosure - REVENUES AND CONTRACT ACCOUNTING (Details - Balance of Contract liabilities)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/RevenuesAndContractAccountingDetails-disaggregatedRevenue" xlink:title="999074 - Disclosure - REVENUES AND CONTRACT ACCOUNTING (Details -Disaggregated revenue)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/RevenuesAndContractAccountingDetailsNarrative" xlink:title="999075 - Disclosure - REVENUES AND CONTRACT ACCOUNTING (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/CommitmentsAndContingenciesDetails-SupplementalInformationRelatedToLeases" xlink:title="999076 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details - Supplemental information related to leases)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/CommitmentsAndContingenciesDetails-FutureMinimumLeasePayments" xlink:title="999077 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details - Future minimum lease payments)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/CommitmentsAndContingenciesDetailsNarrative" xlink:title="999078 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/IncomeTaxesDetails-ProvisionForIncomeTaxes" xlink:title="999079 - Disclosure - INCOME TAXES (Details - Provision for income taxes)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaapIncomeTaxExpenseBenefit" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xlink:label="loc_us-gaapIncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapIncomeTaxExpenseBenefit" xlink:to="loc_us-gaapIncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes" xlink:label="loc_us-gaapIncomeTaxReconciliationStateAndLocalIncomeTaxes" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapIncomeTaxExpenseBenefit" xlink:to="loc_us-gaapIncomeTaxReconciliationStateAndLocalIncomeTaxes" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpense" xlink:label="loc_us-gaapIncomeTaxReconciliationNondeductibleExpense" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapIncomeTaxExpenseBenefit" xlink:to="loc_us-gaapIncomeTaxReconciliationNondeductibleExpense" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaapIncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapIncomeTaxExpenseBenefit" xlink:to="loc_us-gaapIncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/IncomeTaxesDetails-DeferredTaxAssets" xlink:title="999080 - Disclosure - INCOME TAXES (Details - Deferred tax assets)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/IncomeTaxesDetailsNarrative" xlink:title="999081 - Disclosure - INCOME TAXES (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/StockholdersEquityDetailsNarrative" xlink:title="999082 - Disclosure - STOCKHOLDERS&#8217; EQUITY (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/CommonStockOptionsAndWarrantsDetails-OptionsActivity" xlink:title="999083 - Disclosure - COMMON STOCK OPTIONS AND WARRANTS (Details - Options activity)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/CommonStockOptionsAndWarrantsDetails-FairValueAssumptions" xlink:title="999084 - Disclosure - COMMON STOCK OPTIONS AND WARRANTS (Details - Fair value assumptions)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/CommonStockOptionsAndWarrantsDetailsNarrative" xlink:title="999085 - Disclosure - COMMON STOCK OPTIONS AND WARRANTS (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/DefinedContributionPlanDetailsNarrative" xlink:title="999086 - Disclosure - DEFINED CONTRIBUTION PLAN (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/RelatedPartyTransactionsDetailsNarrative" xlink:title="999087 - Disclosure - RELATED PARTY TRANSACTIONS (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/SaleOfAssetsDetails" xlink:title="999088 - Disclosure - SALE OF ASSETS (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/SaleOfAssetsDetailsNarrative" xlink:title="999089 - Disclosure - SALE OF ASSETS (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/Disclosure-intangibleAssetDetails-FutureAmortization" xlink:title="999090 - Disclosure - Disclosure -INTANGIBLE ASSET (Details - Future amortization)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/StockholdersEquityDetails" xlink:title="999091 - Disclosure - STOCKHOLDERS&apos; EQUITY (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/StockholdersEquityDetails1" xlink:title="999092 - Disclosure - STOCKHOLDERS&apos; EQUITY (Details 1)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/StockholdersEquityDetails-NonPlanOptions" xlink:title="999093 - Disclosure - STOCKHOLDERS&apos; EQUITY (Details - Non plan options)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/StockholdersEquityDetails-Warrants" xlink:title="999094 - Disclosure - STOCKHOLDERS&apos; EQUITY (Details - Warrants)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/SubsequentEventsDetailsNarrative" xlink:title="999095 - Disclosure - SUBSEQUENT EVENTS (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/RevenueAndContractAccountingDetails-ContractAssets" xlink:title="999096 - Disclosure - REVENUE AND CONTRACT ACCOUNTING (Details - Contract assets)">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractWithCustomerAssetNetCurrent" xlink:label="loc_us-gaapContractWithCustomerAssetNetCurrent" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_CumulativeRevenueRecognized" xlink:label="loc_duotCumulativeRevenueRecognized" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapContractWithCustomerAssetNetCurrent" xlink:to="loc_duotCumulativeRevenueRecognized" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_BillingsOrCashReceived" xlink:label="loc_duotBillingsOrCashReceived" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapContractWithCustomerAssetNetCurrent" xlink:to="loc_duotBillingsOrCashReceived" xlink:type="arc" weight="-1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/RevenueAndContractAccountingDetails-ContractLiabilities" xlink:title="999097 - Disclosure - REVENUE AND CONTRACT ACCOUNTING (Details - Contract liabilities)">
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_ContractLiabilitiesTechnologiesSystems" xlink:label="loc_duotContractLiabilitiesTechnologiesSystems" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_BillingsAndorCashReceiptsOnUncompletedContracts" xlink:label="loc_duotBillingsAndorCashReceiptsOnUncompletedContracts" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_duotContractLiabilitiesTechnologiesSystems" xlink:to="loc_duotBillingsAndorCashReceiptsOnUncompletedContracts" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_CumulativeRevenuesRecognized" xlink:label="loc_duotCumulativeRevenuesRecognized" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_duotContractLiabilitiesTechnologiesSystems" xlink:to="loc_duotCumulativeRevenuesRecognized" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractWithCustomerLiabilityCurrent" xlink:label="loc_us-gaapContractWithCustomerLiabilityCurrent" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapContractWithCustomerLiabilityCurrent" xlink:to="loc_duotContractLiabilitiesTechnologiesSystems" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="duot-20250331.xsd#duot_ContractLiabilitiesServicesAndConsulting" xlink:label="loc_duotContractLiabilitiesServicesAndConsulting" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapContractWithCustomerLiabilityCurrent" xlink:to="loc_duotContractLiabilitiesServicesAndConsulting" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/RevenueAndContractAccountingDetails-ContractLiabilitiesInterest" xlink:title="999098 - Disclosure - REVENUE AND CONTRACT ACCOUNTING (Details - Contract Liabilities Interest)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/RevenueAndContractAccountingDetails-DisaggregatedRevenue" xlink:title="999099 - Disclosure - REVENUE AND CONTRACT ACCOUNTING (Details - Disaggregated revenue)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/RevenueAndContractAccountingDetailsNarrative" xlink:title="999100 - Disclosure - REVENUE AND CONTRACT ACCOUNTING (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://duostechnologies.com/role/SegmentReportingDetails" xlink:title="999101 - Disclosure - SEGMENT REPORTING (Details)" />
</link:linkbase>
