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  <link:roleRef roleURI="http://sm-energy.com/role/Leases" xlink:type="simple" xlink:href="sm-20200930.xsd#Leases"/>
  <link:calculationLink xlink:role="http://sm-energy.com/role/Leases" xlink:type="extended"/>
  <link:roleRef roleURI="http://sm-energy.com/role/LeasesTables" xlink:type="simple" xlink:href="sm-20200930.xsd#LeasesTables"/>
  <link:calculationLink xlink:role="http://sm-energy.com/role/LeasesTables" xlink:type="extended"/>
  <link:roleRef roleURI="http://sm-energy.com/role/LeaseParameterDetails" xlink:type="simple" xlink:href="sm-20200930.xsd#LeaseParameterDetails"/>
  <link:calculationLink xlink:role="http://sm-energy.com/role/LeaseParameterDetails" xlink:type="extended"/>
  <link:roleRef roleURI="http://sm-energy.com/role/ComponentsoftotalleasecostDetails" xlink:type="simple" xlink:href="sm-20200930.xsd#ComponentsoftotalleasecostDetails"/>
  <link:calculationLink xlink:role="http://sm-energy.com/role/ComponentsoftotalleasecostDetails" xlink:type="extended"/>
  <link:roleRef roleURI="http://sm-energy.com/role/OperatingleaseliabilitymaturitiesDetails" xlink:type="simple" xlink:href="sm-20200930.xsd#OperatingleaseliabilitymaturitiesDetails"/>
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  <link:roleRef roleURI="http://sm-energy.com/role/BalanceSheetinformationrelatedtooperatingleasesDetails" xlink:type="simple" xlink:href="sm-20200930.xsd#BalanceSheetinformationrelatedtooperatingleasesDetails"/>
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</link:linkbase>
