<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <roleRef roleURI="http://www.packagingcorp.com/role/AccruedLiabilities" xlink:href="pkg-20150630.xsd#AccruedLiabilities" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/AccruedLiabilitiesDetails" xlink:href="pkg-20150630.xsd#AccruedLiabilitiesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/AccruedLiabilitiesTables" xlink:href="pkg-20150630.xsd#AccruedLiabilitiesTables" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/AcquisitionsAndDispositions" xlink:href="pkg-20150630.xsd#AcquisitionsAndDispositions" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/AcquisitionsAndDispositionsNarrativeDetails" xlink:href="pkg-20150630.xsd#AcquisitionsAndDispositionsNarrativeDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/CommitmentsGuaranteesIndemnificationsAndLegalProceedings" xlink:href="pkg-20150630.xsd#CommitmentsGuaranteesIndemnificationsAndLegalProceedings" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/ConcentrationsOfRisk" xlink:href="pkg-20150630.xsd#ConcentrationsOfRisk" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/ConcentrationsOfRiskDetails" xlink:href="pkg-20150630.xsd#ConcentrationsOfRiskDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/CondensedConsolidatedBalanceSheetsParenthetical" xlink:href="pkg-20150630.xsd#CondensedConsolidatedBalanceSheetsParenthetical" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/ConsolidatedBalanceSheets" xlink:href="pkg-20150630.xsd#ConsolidatedBalanceSheets" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/ConsolidatedStatementsOfCashFlows" xlink:href="pkg-20150630.xsd#ConsolidatedStatementsOfCashFlows" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/ConsolidatedStatementsOfIncomeAndComprehensiveIncome" xlink:href="pkg-20150630.xsd#ConsolidatedStatementsOfIncomeAndComprehensiveIncome" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/ConsolidatedStatementsOfIncomeAndComprehensiveIncomeParenthetical" xlink:href="pkg-20150630.xsd#ConsolidatedStatementsOfIncomeAndComprehensiveIncomeParenthetical" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/Debt" xlink:href="pkg-20150630.xsd#Debt" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/DebtAdditionalInformationDetails" xlink:href="pkg-20150630.xsd#DebtAdditionalInformationDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/DocumentAndEntityInformation" xlink:href="pkg-20150630.xsd#DocumentAndEntityInformation" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/EarningsPerShare" xlink:href="pkg-20150630.xsd#EarningsPerShare" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/EarningsPerShareComputationOfBasicAndDilutedIncomePerCommonShareDetails" xlink:href="pkg-20150630.xsd#EarningsPerShareComputationOfBasicAndDilutedIncomePerCommonShareDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/EarningsPerShareTables" xlink:href="pkg-20150630.xsd#EarningsPerShareTables" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/EmployeeBenefitPlansAndOtherPostretirementBenefits" xlink:href="pkg-20150630.xsd#EmployeeBenefitPlansAndOtherPostretirementBenefits" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/EmployeeBenefitPlansAndOtherPostretirementBenefitsDetails" xlink:href="pkg-20150630.xsd#EmployeeBenefitPlansAndOtherPostretirementBenefitsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/EmployeeBenefitPlansAndOtherPostretirementBenefitsTables" xlink:href="pkg-20150630.xsd#EmployeeBenefitPlansAndOtherPostretirementBenefitsTables" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/GoodwillAndIntangibleAssets" xlink:href="pkg-20150630.xsd#GoodwillAndIntangibleAssets" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/GoodwillAndIntangibleAssetsGoodwillDetails" xlink:href="pkg-20150630.xsd#GoodwillAndIntangibleAssetsGoodwillDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/GoodwillAndIntangibleAssetsIntangibleAssetsDetails" xlink:href="pkg-20150630.xsd#GoodwillAndIntangibleAssetsIntangibleAssetsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/GoodwillAndIntangibleAssetsTables" xlink:href="pkg-20150630.xsd#GoodwillAndIntangibleAssetsTables" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/IncomeTaxes" xlink:href="pkg-20150630.xsd#IncomeTaxes" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/IncomeTaxesDetails" xlink:href="pkg-20150630.xsd#IncomeTaxesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/Inventories" xlink:href="pkg-20150630.xsd#Inventories" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/InventoriesComponentsOfInventoriesDetails" xlink:href="pkg-20150630.xsd#InventoriesComponentsOfInventoriesDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/InventoriesTables" xlink:href="pkg-20150630.xsd#InventoriesTables" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/NatureOfOperationsAndBasisOfPresentation" xlink:href="pkg-20150630.xsd#NatureOfOperationsAndBasisOfPresentation" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/NatureOfOperationsAndBasisOfPresentationAdditionalInformationDetails" xlink:href="pkg-20150630.xsd#NatureOfOperationsAndBasisOfPresentationAdditionalInformationDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/NatureOfOperationsAndBasisOfPresentationPolicies" xlink:href="pkg-20150630.xsd#NatureOfOperationsAndBasisOfPresentationPolicies" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/NewAndRecentlyAdoptedAccountingStandards" xlink:href="pkg-20150630.xsd#NewAndRecentlyAdoptedAccountingStandards" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/OtherExpenseNet" xlink:href="pkg-20150630.xsd#OtherExpenseNet" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/OtherExpenseNetDetails" xlink:href="pkg-20150630.xsd#OtherExpenseNetDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/OtherExpenseNetTables" xlink:href="pkg-20150630.xsd#OtherExpenseNetTables" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/PropertyPlantAndEquipment" xlink:href="pkg-20150630.xsd#PropertyPlantAndEquipment" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/PropertyPlantAndEquipmentDetails" xlink:href="pkg-20150630.xsd#PropertyPlantAndEquipmentDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/PropertyPlantAndEquipmentTables" xlink:href="pkg-20150630.xsd#PropertyPlantAndEquipmentTables" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/SegmentInformation" xlink:href="pkg-20150630.xsd#SegmentInformation" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/SegmentInformationDetails" xlink:href="pkg-20150630.xsd#SegmentInformationDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/SegmentInformationTables" xlink:href="pkg-20150630.xsd#SegmentInformationTables" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/ShareBasedCompensation" xlink:href="pkg-20150630.xsd#ShareBasedCompensation" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/ShareBasedCompensationAdditionalInformationDetails" xlink:href="pkg-20150630.xsd#ShareBasedCompensationAdditionalInformationDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/ShareBasedCompensationCompensationExpenseForRestrictedStockAndPerformanceUnitsDetails" xlink:href="pkg-20150630.xsd#ShareBasedCompensationCompensationExpenseForRestrictedStockAndPerformanceUnitsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/ShareBasedCompensationSummaryOfRestrictedStockAndPerformanceUnitAwardActivityDetails" xlink:href="pkg-20150630.xsd#ShareBasedCompensationSummaryOfRestrictedStockAndPerformanceUnitAwardActivityDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/ShareBasedCompensationTables" xlink:href="pkg-20150630.xsd#ShareBasedCompensationTables" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/ShareBasedCompensationUnrecognizedCompensationExpenseForShareBasedAwardsDetails" xlink:href="pkg-20150630.xsd#ShareBasedCompensationUnrecognizedCompensationExpenseForShareBasedAwardsDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/StockholdersEquity" xlink:href="pkg-20150630.xsd#StockholdersEquity" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/StockholdersEquityChangesInAccumulatedOtherComprehensiveIncomeByComponentDetails" xlink:href="pkg-20150630.xsd#StockholdersEquityChangesInAccumulatedOtherComprehensiveIncomeByComponentDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/StockholdersEquityDetails" xlink:href="pkg-20150630.xsd#StockholdersEquityDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/StockholdersEquityReclassificationsOutOfAccumulatedOtherComprehensiveIncomeDetails" xlink:href="pkg-20150630.xsd#StockholdersEquityReclassificationsOutOfAccumulatedOtherComprehensiveIncomeDetails" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/StockholdersEquityTables" xlink:href="pkg-20150630.xsd#StockholdersEquityTables" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/TransactionsWithRelatedParties" xlink:href="pkg-20150630.xsd#TransactionsWithRelatedParties" xlink:type="simple" />
  <roleRef roleURI="http://www.packagingcorp.com/role/TransactionsWithRelatedPartiesDetails" xlink:href="pkg-20150630.xsd#TransactionsWithRelatedPartiesDetails" xlink:type="simple" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/AccruedLiabilities" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/AccruedLiabilitiesDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_eaf92fb1-642d-2c65-5ba7-1a63a3697f47" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccruedEmployeeBenefitsCurrent" xlink:label="loc_us-gaap_AccruedEmployeeBenefitsCurrent_770d9897-b7ac-712c-6a0d-08eca281fc37" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_eaf92fb1-642d-2c65-5ba7-1a63a3697f47" xlink:to="loc_us-gaap_AccruedEmployeeBenefitsCurrent_770d9897-b7ac-712c-6a0d-08eca281fc37" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccruedInsuranceCurrent" xlink:label="loc_us-gaap_AccruedInsuranceCurrent_993ccae4-d9a8-5c07-3a93-3833f27f6b79" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_eaf92fb1-642d-2c65-5ba7-1a63a3697f47" xlink:to="loc_us-gaap_AccruedInsuranceCurrent_993ccae4-d9a8-5c07-3a93-3833f27f6b79" xlink:type="arc" />
    <loc xlink:href="pkg-20150630.xsd#pkg_AccrualForFranchisePropertySalesAndUseTaxesCurrent" xlink:label="loc_pkg_AccrualForFranchisePropertySalesAndUseTaxesCurrent_1fce3ff8-391d-81ae-bcfe-96d0ed0328ed" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_eaf92fb1-642d-2c65-5ba7-1a63a3697f47" xlink:to="loc_pkg_AccrualForFranchisePropertySalesAndUseTaxesCurrent_1fce3ff8-391d-81ae-bcfe-96d0ed0328ed" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccruedMarketingCostsCurrent" xlink:label="loc_us-gaap_AccruedMarketingCostsCurrent_8428cc33-e157-8379-c021-05825c598238" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_eaf92fb1-642d-2c65-5ba7-1a63a3697f47" xlink:to="loc_us-gaap_AccruedMarketingCostsCurrent_8428cc33-e157-8379-c021-05825c598238" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SupplementalUnemploymentBenefitsSeveranceBenefits" xlink:label="loc_us-gaap_SupplementalUnemploymentBenefitsSeveranceBenefits_2f649fd5-75fb-de31-b157-0d9f76ec645d" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_eaf92fb1-642d-2c65-5ba7-1a63a3697f47" xlink:to="loc_us-gaap_SupplementalUnemploymentBenefitsSeveranceBenefits_2f649fd5-75fb-de31-b157-0d9f76ec645d" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccruedEnvironmentalLossContingenciesCurrent" xlink:label="loc_us-gaap_AccruedEnvironmentalLossContingenciesCurrent_4d3031ea-a92c-a6b7-d7cc-7e11553fbedb" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_eaf92fb1-642d-2c65-5ba7-1a63a3697f47" xlink:to="loc_us-gaap_AccruedEnvironmentalLossContingenciesCurrent_4d3031ea-a92c-a6b7-d7cc-7e11553fbedb" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherAccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesCurrent_048af4ee-7103-cb68-2311-629c6d180444" xlink:type="locator" />
    <calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_eaf92fb1-642d-2c65-5ba7-1a63a3697f47" xlink:to="loc_us-gaap_OtherAccruedLiabilitiesCurrent_048af4ee-7103-cb68-2311-629c6d180444" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.packagingcorp.com/role/AccruedLiabilitiesTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/AcquisitionsAndDispositions" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/AcquisitionsAndDispositionsNarrativeDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/CommitmentsGuaranteesIndemnificationsAndLegalProceedings" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/ConcentrationsOfRisk" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/ConcentrationsOfRiskDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/CondensedConsolidatedBalanceSheetsParenthetical" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/ConsolidatedBalanceSheets" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_4a314f0d-c6fa-5cf2-0be1-add747465af3" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_1de50dbc-01a9-6657-f83f-d1e74edfdf18" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_4a314f0d-c6fa-5cf2-0be1-add747465af3" xlink:to="loc_us-gaap_LiabilitiesCurrent_1de50dbc-01a9-6657-f83f-d1e74edfdf18" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="loc_us-gaap_LongTermDebtCurrent_cb391e84-b205-7d47-a257-0dea5fb19043" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1de50dbc-01a9-6657-f83f-d1e74edfdf18" xlink:to="loc_us-gaap_LongTermDebtCurrent_cb391e84-b205-7d47-a257-0dea5fb19043" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CapitalLeaseObligationsCurrent" xlink:label="loc_us-gaap_CapitalLeaseObligationsCurrent_0b597336-35f7-7160-5946-f7dfc763851e" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1de50dbc-01a9-6657-f83f-d1e74edfdf18" xlink:to="loc_us-gaap_CapitalLeaseObligationsCurrent_0b597336-35f7-7160-5946-f7dfc763851e" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaap_AccountsPayableCurrent_22caddf9-3843-6329-6e39-dc458323b572" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1de50dbc-01a9-6657-f83f-d1e74edfdf18" xlink:to="loc_us-gaap_AccountsPayableCurrent_22caddf9-3843-6329-6e39-dc458323b572" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DividendsPayableCurrent" xlink:label="loc_us-gaap_DividendsPayableCurrent_b3f651a4-f5a6-afa8-9c69-caf44011d887" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1de50dbc-01a9-6657-f83f-d1e74edfdf18" xlink:to="loc_us-gaap_DividendsPayableCurrent_b3f651a4-f5a6-afa8-9c69-caf44011d887" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccruedIncomeTaxesCurrent" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_d02cabf3-c4d9-166f-23df-bbec715cbe7f" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1de50dbc-01a9-6657-f83f-d1e74edfdf18" xlink:to="loc_us-gaap_AccruedIncomeTaxesCurrent_d02cabf3-c4d9-166f-23df-bbec715cbe7f" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_eaf92fb1-642d-2c65-5ba7-1a63a3697f47" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1de50dbc-01a9-6657-f83f-d1e74edfdf18" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_eaf92fb1-642d-2c65-5ba7-1a63a3697f47" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InterestPayableCurrent" xlink:label="loc_us-gaap_InterestPayableCurrent_bc8e6e7a-e533-790a-96f1-95683a04ac7e" xlink:type="locator" />
    <calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1de50dbc-01a9-6657-f83f-d1e74edfdf18" xlink:to="loc_us-gaap_InterestPayableCurrent_bc8e6e7a-e533-790a-96f1-95683a04ac7e" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesNoncurrent" xlink:label="loc_us-gaap_LiabilitiesNoncurrent_f725acac-bcd6-f401-1a25-fef9d4c802e7" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_4a314f0d-c6fa-5cf2-0be1-add747465af3" xlink:to="loc_us-gaap_LiabilitiesNoncurrent_f725acac-bcd6-f401-1a25-fef9d4c802e7" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_fe891e5b-d2af-f798-198f-f728ce0375a1" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_f725acac-bcd6-f401-1a25-fef9d4c802e7" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_fe891e5b-d2af-f798-198f-f728ce0375a1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CapitalLeaseObligationsNoncurrent" xlink:label="loc_us-gaap_CapitalLeaseObligationsNoncurrent_6d67a44a-7bb7-aca8-5783-acbb1fa2e12c" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_f725acac-bcd6-f401-1a25-fef9d4c802e7" xlink:to="loc_us-gaap_CapitalLeaseObligationsNoncurrent_6d67a44a-7bb7-aca8-5783-acbb1fa2e12c" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxLiabilitiesNoncurrent" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_d3900b70-6aae-8c94-5a39-4a06f81c5d62" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_f725acac-bcd6-f401-1a25-fef9d4c802e7" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_d3900b70-6aae-8c94-5a39-4a06f81c5d62" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" xlink:label="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_7abbf80c-657f-8eba-6e28-225b9514ba8f" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_f725acac-bcd6-f401-1a25-fef9d4c802e7" xlink:to="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_7abbf80c-657f-8eba-6e28-225b9514ba8f" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_7f5c7cfd-4659-429c-35ab-266d67961421" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_f725acac-bcd6-f401-1a25-fef9d4c802e7" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_7f5c7cfd-4659-429c-35ab-266d67961421" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_d0f349aa-18e3-6323-86ad-665f8773c064" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_4a314f0d-c6fa-5cf2-0be1-add747465af3" xlink:to="loc_us-gaap_StockholdersEquity_d0f349aa-18e3-6323-86ad-665f8773c064" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaap_CommonStockValue_ce40a301-9b6b-9fc3-bfb6-dfbb8fcdf29b" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_d0f349aa-18e3-6323-86ad-665f8773c064" xlink:to="loc_us-gaap_CommonStockValue_ce40a301-9b6b-9fc3-bfb6-dfbb8fcdf29b" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_8d1ec446-d346-e57d-d34b-0cb90bceaaba" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_d0f349aa-18e3-6323-86ad-665f8773c064" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_8d1ec446-d346-e57d-d34b-0cb90bceaaba" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_1d565cd0-d7bf-de89-4dbe-a484007b1fe8" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_d0f349aa-18e3-6323-86ad-665f8773c064" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_1d565cd0-d7bf-de89-4dbe-a484007b1fe8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_dd6b7206-c19f-4dd5-339b-1369c57cfe0f" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_d0f349aa-18e3-6323-86ad-665f8773c064" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_dd6b7206-c19f-4dd5-339b-1369c57cfe0f" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_effc14df-fd72-eec8-ede9-64e0071b91bc" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent_39eaeb62-7ee3-5503-48f5-08c2dff05e50" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_effc14df-fd72-eec8-ede9-64e0071b91bc" xlink:to="loc_us-gaap_AssetsCurrent_39eaeb62-7ee3-5503-48f5-08c2dff05e50" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_cd34decb-53b6-e0a9-28d5-0a9741c4b0f8" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_39eaeb62-7ee3-5503-48f5-08c2dff05e50" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_cd34decb-53b6-e0a9-28d5-0a9741c4b0f8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_4d24e56f-a5cb-07ba-0508-f5f1533ae24e" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_39eaeb62-7ee3-5503-48f5-08c2dff05e50" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_4d24e56f-a5cb-07ba-0508-f5f1533ae24e" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaap_InventoryNet_eae794c2-73ec-cd91-efb3-99a2ff1f24cf" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_39eaeb62-7ee3-5503-48f5-08c2dff05e50" xlink:to="loc_us-gaap_InventoryNet_eae794c2-73ec-cd91-efb3-99a2ff1f24cf" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_f186537c-a0b4-9ca7-f59a-958a18f111e6" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_39eaeb62-7ee3-5503-48f5-08c2dff05e50" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_f186537c-a0b4-9ca7-f59a-958a18f111e6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxesReceivable" xlink:label="loc_us-gaap_IncomeTaxesReceivable_7a61c15e-09d6-6a5c-81c0-2dfb596b27a3" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_39eaeb62-7ee3-5503-48f5-08c2dff05e50" xlink:to="loc_us-gaap_IncomeTaxesReceivable_7a61c15e-09d6-6a5c-81c0-2dfb596b27a3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxAssetsNetCurrent" xlink:label="loc_us-gaap_DeferredTaxAssetsNetCurrent_dabadfa8-724e-a2d5-b648-d64b8eabce5a" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_39eaeb62-7ee3-5503-48f5-08c2dff05e50" xlink:to="loc_us-gaap_DeferredTaxAssetsNetCurrent_dabadfa8-724e-a2d5-b648-d64b8eabce5a" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_7ce178a4-245f-fa78-36a1-552609a67554" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_effc14df-fd72-eec8-ede9-64e0071b91bc" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_7ce178a4-245f-fa78-36a1-552609a67554" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_b108d604-1348-4e65-3817-2944b734c65a" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_effc14df-fd72-eec8-ede9-64e0071b91bc" xlink:to="loc_us-gaap_Goodwill_b108d604-1348-4e65-3817-2944b734c65a" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_d1f67248-e9b5-f4cc-7b0f-6057f1a3d17a" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_effc14df-fd72-eec8-ede9-64e0071b91bc" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_d1f67248-e9b5-f4cc-7b0f-6057f1a3d17a" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_9b98e689-e6db-3e5b-e5c3-3324fffb4edf" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_effc14df-fd72-eec8-ede9-64e0071b91bc" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_9b98e689-e6db-3e5b-e5c3-3324fffb4edf" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.packagingcorp.com/role/ConsolidatedStatementsOfCashFlows" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_ff5db18e-7b91-5a5d-e914-0527b02a8012" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_ff5db18e-7b91-5a5d-e914-0527b02a8012" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_e62ce8b8-4401-2622-8598-3e644745e95e" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_NetIncomeLoss_e62ce8b8-4401-2622-8598-3e644745e95e" xlink:type="arc" />
    <loc xlink:href="pkg-20150630.xsd#pkg_DepreciationDepletionAmortizationAndOtherCashFlowImpact" xlink:label="loc_pkg_DepreciationDepletionAmortizationAndOtherCashFlowImpact_e51d8b1b-0444-abc2-3e2e-96d0ecef62eb" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_pkg_DepreciationDepletionAmortizationAndOtherCashFlowImpact_e51d8b1b-0444-abc2-3e2e-96d0ecef62eb" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_d4c99b59-c44a-c4ac-309f-0bddfdb944a5" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_ShareBasedCompensation_d4c99b59-c44a-c4ac-309f-0bddfdb944a5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_8b437d2d-6bbf-1f71-a341-6d3ac2b36703" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_8b437d2d-6bbf-1f71-a341-6d3ac2b36703" xlink:type="arc" />
    <loc xlink:href="pkg-20150630.xsd#pkg_PensionAndPostretirementBenefitsContributionsExpenseNet" xlink:label="loc_pkg_PensionAndPostretirementBenefitsContributionsExpenseNet_43558afe-5631-afff-8008-96d0ecf99bdb" xlink:type="locator" />
    <calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_pkg_PensionAndPostretirementBenefitsContributionsExpenseNet_43558afe-5631-afff-8008-96d0ecf99bdb" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherOperatingActivitiesCashFlowStatement" xlink:label="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_1f67ed15-e24e-0eab-52cc-7a24637f3606" xlink:type="locator" />
    <calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_1f67ed15-e24e-0eab-52cc-7a24637f3606" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_91d80b53-6368-7466-a11d-02030d33de5c" xlink:type="locator" />
    <calculationArc order="7" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_91d80b53-6368-7466-a11d-02030d33de5c" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_59947135-2495-391e-9e35-ed6effebb894" xlink:type="locator" />
    <calculationArc order="8" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_59947135-2495-391e-9e35-ed6effebb894" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_709900d0-f7b0-b950-eae5-eeb8fc36b367" xlink:type="locator" />
    <calculationArc order="9" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_709900d0-f7b0-b950-eae5-eeb8fc36b367" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_a167e25c-e8b1-aeb8-f355-3727e3f06f3e" xlink:type="locator" />
    <calculationArc order="10" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_a167e25c-e8b1-aeb8-f355-3727e3f06f3e" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_1ea297cc-8653-7155-6fa9-a3af7df49950" xlink:type="locator" />
    <calculationArc order="11" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_1ea297cc-8653-7155-6fa9-a3af7df49950" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInIncomeTaxesReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_3ff65e37-c503-2de0-647e-72ee386da3f1" xlink:type="locator" />
    <calculationArc order="12" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_3ff65e37-c503-2de0-647e-72ee386da3f1" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_58a5bd26-e5f4-de8f-6118-f713733148b8" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_ff5db18e-7b91-5a5d-e914-0527b02a8012" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_58a5bd26-e5f4-de8f-6118-f713733148b8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_386292ff-155c-0309-455a-2b91b395b3da" xlink:type="locator" />
    <calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_58a5bd26-e5f4-de8f-6118-f713733148b8" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_386292ff-155c-0309-455a-2b91b395b3da" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromDivestitureOfBusinessesNetOfCashDivested" xlink:label="loc_us-gaap_ProceedsFromDivestitureOfBusinessesNetOfCashDivested_52a28b5a-584b-eac2-7eb0-0f0b346cdbfd" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_58a5bd26-e5f4-de8f-6118-f713733148b8" xlink:to="loc_us-gaap_ProceedsFromDivestitureOfBusinessesNetOfCashDivested_52a28b5a-584b-eac2-7eb0-0f0b346cdbfd" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_4852d3ee-c33e-1b07-798c-41e651367343" xlink:type="locator" />
    <calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_58a5bd26-e5f4-de8f-6118-f713733148b8" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_4852d3ee-c33e-1b07-798c-41e651367343" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsToAcquireOtherProductiveAssets" xlink:label="loc_us-gaap_PaymentsToAcquireOtherProductiveAssets_b6ed717f-2ece-aa81-6051-41cf1a876a59" xlink:type="locator" />
    <calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_58a5bd26-e5f4-de8f-6118-f713733148b8" xlink:to="loc_us-gaap_PaymentsToAcquireOtherProductiveAssets_b6ed717f-2ece-aa81-6051-41cf1a876a59" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_0ff68e79-9d67-8dd3-0a29-1b2e1239e793" xlink:type="locator" />
    <calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_58a5bd26-e5f4-de8f-6118-f713733148b8" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_0ff68e79-9d67-8dd3-0a29-1b2e1239e793" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a678c20d-a481-ef6a-800a-4bd566075d81" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_ff5db18e-7b91-5a5d-e914-0527b02a8012" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a678c20d-a481-ef6a-800a-4bd566075d81" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities_916c0ad8-4410-ac61-854a-bcef2cfe3ffc" xlink:type="locator" />
    <calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a678c20d-a481-ef6a-800a-4bd566075d81" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities_916c0ad8-4410-ac61-854a-bcef2cfe3ffc" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsOfDividendsCommonStock" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_b07c9b5a-c776-a7f8-0b34-5abf7f1d31cd" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a678c20d-a481-ef6a-800a-4bd566075d81" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_b07c9b5a-c776-a7f8-0b34-5abf7f1d31cd" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_4c2e87e5-41d0-b35b-6dfd-e3ab5b253709" xlink:type="locator" />
    <calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a678c20d-a481-ef6a-800a-4bd566075d81" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_4c2e87e5-41d0-b35b-6dfd-e3ab5b253709" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromStockOptionsExercised" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_f1b85fa1-97cd-57cc-5318-fb8dd976eb81" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a678c20d-a481-ef6a-800a-4bd566075d81" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_f1b85fa1-97cd-57cc-5318-fb8dd976eb81" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" xlink:label="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_9dbeb004-67a9-1b19-c357-8b5cbf0013ee" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a678c20d-a481-ef6a-800a-4bd566075d81" xlink:to="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_9dbeb004-67a9-1b19-c357-8b5cbf0013ee" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_2660b777-f313-aa0f-f2f0-b727ebbc5b13" xlink:type="locator" />
    <calculationArc order="6" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a678c20d-a481-ef6a-800a-4bd566075d81" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_2660b777-f313-aa0f-f2f0-b727ebbc5b13" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_03b01b21-9333-5ba7-dbad-c8702c225fae" xlink:type="locator" />
    <calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a678c20d-a481-ef6a-800a-4bd566075d81" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_03b01b21-9333-5ba7-dbad-c8702c225fae" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.packagingcorp.com/role/ConsolidatedStatementsOfIncomeAndComprehensiveIncome" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_2c8c6c89-9465-bb81-ea21-29a749a3199b" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_0ea1551e-1643-5e21-4c6e-6431fd87aa68" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_2c8c6c89-9465-bb81-ea21-29a749a3199b" xlink:to="loc_us-gaap_OperatingIncomeLoss_0ea1551e-1643-5e21-4c6e-6431fd87aa68" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaap_GrossProfit_ae720951-4a78-255d-8bd1-88ff26a27caf" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_0ea1551e-1643-5e21-4c6e-6431fd87aa68" xlink:to="loc_us-gaap_GrossProfit_ae720951-4a78-255d-8bd1-88ff26a27caf" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SalesRevenueNet" xlink:label="loc_us-gaap_SalesRevenueNet_533a4e74-899a-26d7-f9ea-a738a9e615c4" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_ae720951-4a78-255d-8bd1-88ff26a27caf" xlink:to="loc_us-gaap_SalesRevenueNet_533a4e74-899a-26d7-f9ea-a738a9e615c4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CostOfGoodsSold" xlink:label="loc_us-gaap_CostOfGoodsSold_47bf16bc-113d-838a-56d3-e154f0f2a154" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_ae720951-4a78-255d-8bd1-88ff26a27caf" xlink:to="loc_us-gaap_CostOfGoodsSold_47bf16bc-113d-838a-56d3-e154f0f2a154" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_37d23128-e0be-7b8b-d6c6-f3d1ac14cac9" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_0ea1551e-1643-5e21-4c6e-6431fd87aa68" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_37d23128-e0be-7b8b-d6c6-f3d1ac14cac9" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherOperatingIncomeExpenseNet" xlink:label="loc_us-gaap_OtherOperatingIncomeExpenseNet_79de0d73-bbe6-fb4c-5b19-352de5c7cee6" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_0ea1551e-1643-5e21-4c6e-6431fd87aa68" xlink:to="loc_us-gaap_OtherOperatingIncomeExpenseNet_79de0d73-bbe6-fb4c-5b19-352de5c7cee6" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InterestIncomeExpenseNonoperatingNet" xlink:label="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_5181c7cb-cc2b-9119-724a-97d7d41fc74f" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_2c8c6c89-9465-bb81-ea21-29a749a3199b" xlink:to="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_5181c7cb-cc2b-9119-724a-97d7d41fc74f" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_640557c9-9806-6bef-9084-9cc792948f77" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_e62ce8b8-4401-2622-8598-3e644745e95e" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_640557c9-9806-6bef-9084-9cc792948f77" xlink:to="loc_us-gaap_NetIncomeLoss_e62ce8b8-4401-2622-8598-3e644745e95e" xlink:type="arc" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_e62ce8b8-4401-2622-8598-3e644745e95e" xlink:to="loc_us-gaap_SalesRevenueNet_533a4e74-899a-26d7-f9ea-a738a9e615c4" xlink:type="arc" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_e62ce8b8-4401-2622-8598-3e644745e95e" xlink:to="loc_us-gaap_CostOfGoodsSold_47bf16bc-113d-838a-56d3-e154f0f2a154" xlink:type="arc" />
    <calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_e62ce8b8-4401-2622-8598-3e644745e95e" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_37d23128-e0be-7b8b-d6c6-f3d1ac14cac9" xlink:type="arc" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_e62ce8b8-4401-2622-8598-3e644745e95e" xlink:to="loc_us-gaap_OtherOperatingIncomeExpenseNet_79de0d73-bbe6-fb4c-5b19-352de5c7cee6" xlink:type="arc" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_e62ce8b8-4401-2622-8598-3e644745e95e" xlink:to="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_5181c7cb-cc2b-9119-724a-97d7d41fc74f" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_b8dcf191-083d-828d-7b9f-e2d2969b89f4" xlink:type="locator" />
    <calculationArc order="6" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_e62ce8b8-4401-2622-8598-3e644745e95e" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_b8dcf191-083d-828d-7b9f-e2d2969b89f4" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_e716acb8-9d7f-1564-a267-c0491db420a5" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_640557c9-9806-6bef-9084-9cc792948f77" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_e716acb8-9d7f-1564-a267-c0491db420a5" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax_65cbf966-17f1-6b91-ff34-d36adae843af" xlink:type="locator" />
    <calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_e716acb8-9d7f-1564-a267-c0491db420a5" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax_65cbf966-17f1-6b91-ff34-d36adae843af" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax_7887557d-59d3-8227-ec31-4e8d5e8d0c41" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_e716acb8-9d7f-1564-a267-c0491db420a5" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax_7887557d-59d3-8227-ec31-4e8d5e8d0c41" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_2dc03bb1-7e1c-8836-90a9-27405b0684df" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_e716acb8-9d7f-1564-a267-c0491db420a5" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_2dc03bb1-7e1c-8836-90a9-27405b0684df" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.packagingcorp.com/role/ConsolidatedStatementsOfIncomeAndComprehensiveIncomeParenthetical" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/Debt" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/DebtAdditionalInformationDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/DocumentAndEntityInformation" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/EarningsPerShare" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/EarningsPerShareComputationOfBasicAndDilutedIncomePerCommonShareDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_ca9bebe4-4073-b721-7b75-1a0086593d58" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_8afbf9ec-40f2-ac04-dde9-64f96fdfbf74" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_ca9bebe4-4073-b721-7b75-1a0086593d58" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_8afbf9ec-40f2-ac04-dde9-64f96fdfbf74" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_0449447d-2475-b5e7-892e-ced6d0229840" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_ca9bebe4-4073-b721-7b75-1a0086593d58" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_0449447d-2475-b5e7-892e-ced6d0229840" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_a8aff2a0-5170-c273-e6ae-b3a075237f59" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_e62ce8b8-4401-2622-8598-3e644745e95e" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_a8aff2a0-5170-c273-e6ae-b3a075237f59" xlink:to="loc_us-gaap_NetIncomeLoss_e62ce8b8-4401-2622-8598-3e644745e95e" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic" xlink:label="loc_us-gaap_ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic_0f3128f3-3d8b-e700-4bb6-7eb11674f54c" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_a8aff2a0-5170-c273-e6ae-b3a075237f59" xlink:to="loc_us-gaap_ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic_0f3128f3-3d8b-e700-4bb6-7eb11674f54c" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.packagingcorp.com/role/EarningsPerShareTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/EmployeeBenefitPlansAndOtherPostretirementBenefits" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/EmployeeBenefitPlansAndOtherPostretirementBenefitsDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_2ec65622-4890-2364-d89a-c6403a1d04a9" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_966abc5a-0aea-5fe8-d8a1-9e044afb9784" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_2ec65622-4890-2364-d89a-c6403a1d04a9" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_966abc5a-0aea-5fe8-d8a1-9e044afb9784" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_6183ad76-cfec-d832-340d-85dc815112da" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_2ec65622-4890-2364-d89a-c6403a1d04a9" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_6183ad76-cfec-d832-340d-85dc815112da" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_313a5f98-4635-6c34-4024-f94b2c5b9063" xlink:type="locator" />
    <calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_2ec65622-4890-2364-d89a-c6403a1d04a9" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_313a5f98-4635-6c34-4024-f94b2c5b9063" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_2b770c62-b0fb-c708-98e5-41278be9cb84" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_2ec65622-4890-2364-d89a-c6403a1d04a9" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_2b770c62-b0fb-c708-98e5-41278be9cb84" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_ba702cef-8d4b-17f2-0b31-74e9eb092d82" xlink:type="locator" />
    <calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_2ec65622-4890-2364-d89a-c6403a1d04a9" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_ba702cef-8d4b-17f2-0b31-74e9eb092d82" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.packagingcorp.com/role/EmployeeBenefitPlansAndOtherPostretirementBenefitsTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/GoodwillAndIntangibleAssets" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/GoodwillAndIntangibleAssetsGoodwillDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/GoodwillAndIntangibleAssetsIntangibleAssetsDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/GoodwillAndIntangibleAssetsTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/IncomeTaxes" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/IncomeTaxesDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/Inventories" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/InventoriesComponentsOfInventoriesDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaap_InventoryNet_eae794c2-73ec-cd91-efb3-99a2ff1f24cf" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InventoryRawMaterials" xlink:label="loc_us-gaap_InventoryRawMaterials_ddc44af1-f865-b8f3-ce06-9accf616f903" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_eae794c2-73ec-cd91-efb3-99a2ff1f24cf" xlink:to="loc_us-gaap_InventoryRawMaterials_ddc44af1-f865-b8f3-ce06-9accf616f903" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InventoryWorkInProcess" xlink:label="loc_us-gaap_InventoryWorkInProcess_ef2bfc16-b9ff-7ae0-156c-405ea26130bd" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_eae794c2-73ec-cd91-efb3-99a2ff1f24cf" xlink:to="loc_us-gaap_InventoryWorkInProcess_ef2bfc16-b9ff-7ae0-156c-405ea26130bd" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InventoryFinishedGoods" xlink:label="loc_us-gaap_InventoryFinishedGoods_0a4251d0-3362-0589-0f60-b37a3563d81e" xlink:type="locator" />
    <calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_eae794c2-73ec-cd91-efb3-99a2ff1f24cf" xlink:to="loc_us-gaap_InventoryFinishedGoods_0a4251d0-3362-0589-0f60-b37a3563d81e" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherInventorySupplies" xlink:label="loc_us-gaap_OtherInventorySupplies_c5bbe19f-1073-d6c9-9844-1767f57e9900" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_eae794c2-73ec-cd91-efb3-99a2ff1f24cf" xlink:to="loc_us-gaap_OtherInventorySupplies_c5bbe19f-1073-d6c9-9844-1767f57e9900" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.packagingcorp.com/role/InventoriesTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/NatureOfOperationsAndBasisOfPresentation" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/NatureOfOperationsAndBasisOfPresentationAdditionalInformationDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/NatureOfOperationsAndBasisOfPresentationPolicies" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/NewAndRecentlyAdoptedAccountingStandards" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/OtherExpenseNet" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/OtherExpenseNetDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherOperatingIncomeExpenseNet" xlink:label="loc_us-gaap_OtherOperatingIncomeExpenseNet_79de0d73-bbe6-fb4c-5b19-352de5c7cee6" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_BusinessCombinationIntegrationRelatedCosts" xlink:label="loc_us-gaap_BusinessCombinationIntegrationRelatedCosts_02313e5c-a12a-56bd-f802-1c350a392aeb" xlink:type="locator" />
    <calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherOperatingIncomeExpenseNet_79de0d73-bbe6-fb4c-5b19-352de5c7cee6" xlink:to="loc_us-gaap_BusinessCombinationIntegrationRelatedCosts_02313e5c-a12a-56bd-f802-1c350a392aeb" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_GainLossOnDispositionOfAssets" xlink:label="loc_us-gaap_GainLossOnDispositionOfAssets_fb494dca-a6f9-5acd-aae1-6097bfedbd1f" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherOperatingIncomeExpenseNet_79de0d73-bbe6-fb4c-5b19-352de5c7cee6" xlink:to="loc_us-gaap_GainLossOnDispositionOfAssets_fb494dca-a6f9-5acd-aae1-6097bfedbd1f" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RestructuringSettlementAndImpairmentProvisions" xlink:label="loc_us-gaap_RestructuringSettlementAndImpairmentProvisions_aa9436f9-d07b-4836-ca13-7bdbe032e6e0" xlink:type="locator" />
    <calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherOperatingIncomeExpenseNet_79de0d73-bbe6-fb4c-5b19-352de5c7cee6" xlink:to="loc_us-gaap_RestructuringSettlementAndImpairmentProvisions_aa9436f9-d07b-4836-ca13-7bdbe032e6e0" xlink:type="arc" />
    <loc xlink:href="pkg-20150630.xsd#pkg_Refundablestatetaxcredit" xlink:label="loc_pkg_Refundablestatetaxcredit_9af90569-9e35-ee13-7d5b-96d0ecdb7ae3" xlink:type="locator" />
    <calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherOperatingIncomeExpenseNet_79de0d73-bbe6-fb4c-5b19-352de5c7cee6" xlink:to="loc_pkg_Refundablestatetaxcredit_9af90569-9e35-ee13-7d5b-96d0ecdb7ae3" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_GainLossRelatedToLitigationSettlement" xlink:label="loc_us-gaap_GainLossRelatedToLitigationSettlement_949f3a42-554b-2724-dfc3-2d682510f18b" xlink:type="locator" />
    <calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherOperatingIncomeExpenseNet_79de0d73-bbe6-fb4c-5b19-352de5c7cee6" xlink:to="loc_us-gaap_GainLossRelatedToLitigationSettlement_949f3a42-554b-2724-dfc3-2d682510f18b" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherCostAndExpenseOperating" xlink:label="loc_us-gaap_OtherCostAndExpenseOperating_a085a883-1972-f13c-a978-1b42ab0edba3" xlink:type="locator" />
    <calculationArc order="6" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherOperatingIncomeExpenseNet_79de0d73-bbe6-fb4c-5b19-352de5c7cee6" xlink:to="loc_us-gaap_OtherCostAndExpenseOperating_a085a883-1972-f13c-a978-1b42ab0edba3" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.packagingcorp.com/role/OtherExpenseNetTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/PropertyPlantAndEquipment" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/PropertyPlantAndEquipmentDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_7ce178a4-245f-fa78-36a1-552609a67554" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_6591f040-08b3-69a1-a560-c70736475ada" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_7ce178a4-245f-fa78-36a1-552609a67554" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_6591f040-08b3-69a1-a560-c70736475ada" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_b84a1570-30ad-4e3a-2391-9767a64e15fd" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_7ce178a4-245f-fa78-36a1-552609a67554" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_b84a1570-30ad-4e3a-2391-9767a64e15fd" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.packagingcorp.com/role/PropertyPlantAndEquipmentTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/SegmentInformation" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/SegmentInformationDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/SegmentInformationTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/ShareBasedCompensation" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/ShareBasedCompensationAdditionalInformationDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/ShareBasedCompensationCompensationExpenseForRestrictedStockAndPerformanceUnitsDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax_ed55a377-3e01-611f-cd7f-0fbe24ab1ea8" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_3d8b2111-7dfd-aac1-d600-3c06aa98a76d" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax_ed55a377-3e01-611f-cd7f-0fbe24ab1ea8" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_3d8b2111-7dfd-aac1-d600-3c06aa98a76d" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_1cd67c75-2b70-2503-15d7-39868db2360d" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax_ed55a377-3e01-611f-cd7f-0fbe24ab1ea8" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_1cd67c75-2b70-2503-15d7-39868db2360d" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.packagingcorp.com/role/ShareBasedCompensationSummaryOfRestrictedStockAndPerformanceUnitAwardActivityDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/ShareBasedCompensationTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/ShareBasedCompensationUnrecognizedCompensationExpenseForShareBasedAwardsDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/StockholdersEquity" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/StockholdersEquityChangesInAccumulatedOtherComprehensiveIncomeByComponentDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_e716acb8-9d7f-1564-a267-c0491db420a5" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_9cb44be5-2a71-02f6-ec1b-e73ec75bdeb8" xlink:type="locator" />
    <calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_e716acb8-9d7f-1564-a267-c0491db420a5" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_9cb44be5-2a71-02f6-ec1b-e73ec75bdeb8" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_899dfaa0-0733-036e-1b68-7a4e8ba40bf8" xlink:type="locator" />
    <calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_e716acb8-9d7f-1564-a267-c0491db420a5" xlink:to="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_899dfaa0-0733-036e-1b68-7a4e8ba40bf8" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.packagingcorp.com/role/StockholdersEquityDetails" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/StockholdersEquityReclassificationsOutOfAccumulatedOtherComprehensiveIncomeDetails" xlink:type="extended">
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_2c8c6c89-9465-bb81-ea21-29a749a3199b" xlink:type="locator" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_2b770c62-b0fb-c708-98e5-41278be9cb84" xlink:type="locator" />
    <calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_2c8c6c89-9465-bb81-ea21-29a749a3199b" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_2b770c62-b0fb-c708-98e5-41278be9cb84" xlink:type="arc" />
    <loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_ba702cef-8d4b-17f2-0b31-74e9eb092d82" xlink:type="locator" />
    <calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_2c8c6c89-9465-bb81-ea21-29a749a3199b" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_ba702cef-8d4b-17f2-0b31-74e9eb092d82" xlink:type="arc" />
  </calculationLink>
  <calculationLink xlink:role="http://www.packagingcorp.com/role/StockholdersEquityTables" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/TransactionsWithRelatedParties" xlink:type="extended" />
  <calculationLink xlink:role="http://www.packagingcorp.com/role/TransactionsWithRelatedPartiesDetails" xlink:type="extended" />
</linkbase>
