<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <link:roleRef roleURI="http://www.oildri.com/role/CoverPageDocument" xlink:href="odc-20201013.xsd#CoverPageDocument" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/StatementOfCashFlows" xlink:href="odc-20201013.xsd#StatementOfCashFlows" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/StatementOfFinancialPosition" xlink:href="odc-20201013.xsd#StatementOfFinancialPosition" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/StatementOfIncome" xlink:href="odc-20201013.xsd#StatementOfIncome" xlink:type="simple" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/CoverPageDocument" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/StatementOfCashFlows" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/StatementOfFinancialPosition" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/StatementOfIncome" xlink:type="extended" />
</link:linkbase>
