<?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/AccumulatedOtherComprehensiveLossIncomeDetails" xlink:href="odc-20171031.xsd#AccumulatedOtherComprehensiveLossIncomeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/AccumulatedOtherComprehensiveLossIncomeNarrativeDetails" xlink:href="odc-20171031.xsd#AccumulatedOtherComprehensiveLossIncomeNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/AccumulatedOtherComprehensiveLossIncomeNotes" xlink:href="odc-20171031.xsd#AccumulatedOtherComprehensiveLossIncomeNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/AccumulatedOtherComprehensiveLossIncomeTables" xlink:href="odc-20171031.xsd#AccumulatedOtherComprehensiveLossIncomeTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/BasisOfStatementPresentation" xlink:href="odc-20171031.xsd#BasisOfStatementPresentation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/BasisOfStatementPresentationLevel2Policies" xlink:href="odc-20171031.xsd#BasisOfStatementPresentationLevel2Policies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/CondensedConsolidatedBalanceSheetParenthetical" xlink:href="odc-20171031.xsd#CondensedConsolidatedBalanceSheetParenthetical" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/CondensedConsolidatedBalanceSheets" xlink:href="odc-20171031.xsd#CondensedConsolidatedBalanceSheets" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/CondensedConsolidatedStatementsOfCashFlows" xlink:href="odc-20171031.xsd#CondensedConsolidatedStatementsOfCashFlows" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/CondensedConsolidatedStatementsOfComprehensiveIncome" xlink:href="odc-20171031.xsd#CondensedConsolidatedStatementsOfComprehensiveIncome" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/CondensedConsolidatedStatementsOfIncomeAndRetainedEarnings" xlink:href="odc-20171031.xsd#CondensedConsolidatedStatementsOfIncomeAndRetainedEarnings" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/DocumentAndEntityInformation" xlink:href="odc-20171031.xsd#DocumentAndEntityInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/FairValueMeasurements" xlink:href="odc-20171031.xsd#FairValueMeasurements" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/FairValueMeasurementsFairValueMeasurementsPolicies" xlink:href="odc-20171031.xsd#FairValueMeasurementsFairValueMeasurementsPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/FairValueMeasurementsNarrativeDetails" xlink:href="odc-20171031.xsd#FairValueMeasurementsNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/GoodwillAndOtherIntangiblesDetails" xlink:href="odc-20171031.xsd#GoodwillAndOtherIntangiblesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/GoodwillAndOtherIntangiblesNarrativeDetails" xlink:href="odc-20171031.xsd#GoodwillAndOtherIntangiblesNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/GoodwillAndOtherIntangiblesNotes" xlink:href="odc-20171031.xsd#GoodwillAndOtherIntangiblesNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/GoodwillAndOtherIntangiblesTables" xlink:href="odc-20171031.xsd#GoodwillAndOtherIntangiblesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/Inventories" xlink:href="odc-20171031.xsd#Inventories" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/InventoriesDetails" xlink:href="odc-20171031.xsd#InventoriesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/InventoriesLevel2Policies" xlink:href="odc-20171031.xsd#InventoriesLevel2Policies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/InventoriesLevel3Tables" xlink:href="odc-20171031.xsd#InventoriesLevel3Tables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/InventoriesNarrativeDetails" xlink:href="odc-20171031.xsd#InventoriesNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/NewAccountingPronouncements" xlink:href="odc-20171031.xsd#NewAccountingPronouncements" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/NewAccountingPronouncementsNarrativeDetails" xlink:href="odc-20171031.xsd#NewAccountingPronouncementsNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/OperatingSegments" xlink:href="odc-20171031.xsd#OperatingSegments" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/OperatingSegmentsDetails" xlink:href="odc-20171031.xsd#OperatingSegmentsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/OperatingSegmentsLevel2Policies" xlink:href="odc-20171031.xsd#OperatingSegmentsLevel2Policies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/OperatingSegmentsNarrativeDetails" xlink:href="odc-20171031.xsd#OperatingSegmentsNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/OperatingSegmentsTables" xlink:href="odc-20171031.xsd#OperatingSegmentsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/PensionAndOtherPostretirementBenefits" xlink:href="odc-20171031.xsd#PensionAndOtherPostretirementBenefits" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/PensionAndOtherPostretirementBenefitsAssumptionsDetails" xlink:href="odc-20171031.xsd#PensionAndOtherPostretirementBenefitsAssumptionsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/PensionAndOtherPostretirementBenefitsDetails" xlink:href="odc-20171031.xsd#PensionAndOtherPostretirementBenefitsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/PensionAndOtherPostretirementBenefitsNarrativeDetails" xlink:href="odc-20171031.xsd#PensionAndOtherPostretirementBenefitsNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/PensionAndOtherPostretirementBenefitsTables" xlink:href="odc-20171031.xsd#PensionAndOtherPostretirementBenefitsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/RelatedPartyTransactionsDetails" xlink:href="odc-20171031.xsd#RelatedPartyTransactionsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/RelatedPartyTransactionsNotes" xlink:href="odc-20171031.xsd#RelatedPartyTransactionsNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/StockBasedCompensation" xlink:href="odc-20171031.xsd#StockBasedCompensation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/StockBasedCompensationNarrativeDetails" xlink:href="odc-20171031.xsd#StockBasedCompensationNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/StockBasedCompensationSummaryOfRestrictedStockTransactionsDetails" xlink:href="odc-20171031.xsd#StockBasedCompensationSummaryOfRestrictedStockTransactionsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.oildri.com/role/StockBasedCompensationTables" xlink:href="odc-20171031.xsd#StockBasedCompensationTables" xlink:type="simple" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/AccumulatedOtherComprehensiveLossIncomeDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/AccumulatedOtherComprehensiveLossIncomeNarrativeDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/AccumulatedOtherComprehensiveLossIncomeNotes" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/AccumulatedOtherComprehensiveLossIncomeTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/BasisOfStatementPresentation" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/BasisOfStatementPresentationLevel2Policies" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/CondensedConsolidatedBalanceSheetParenthetical" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/CondensedConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_aeb1020a-508a-a8c1-f34c-bafff16c26cb" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax_8906f4c3-cd53-5694-e1d7-bcac7afd7cef" xlink:type="locator" />
    <link:calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_aeb1020a-508a-a8c1-f34c-bafff16c26cb" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax_8906f4c3-cd53-5694-e1d7-bcac7afd7cef" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax_0408e391-7b18-f05c-0e65-d5e368b00a0d" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_aeb1020a-508a-a8c1-f34c-bafff16c26cb" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax_0408e391-7b18-f05c-0e65-d5e368b00a0d" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_08bee809-e27e-48c3-da2d-5d52948eb470" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AssetsNoncurrent" xlink:label="loc_us-gaap_AssetsNoncurrent_077d07a8-79e6-ef7c-e812-5f2b45805594" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_08bee809-e27e-48c3-da2d-5d52948eb470" xlink:to="loc_us-gaap_AssetsNoncurrent_077d07a8-79e6-ef7c-e812-5f2b45805594" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_d723083e-f7a3-6d89-9926-32afaa010d8a" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_077d07a8-79e6-ef7c-e812-5f2b45805594" xlink:to="loc_us-gaap_Goodwill_d723083e-f7a3-6d89-9926-32afaa010d8a" xlink:type="arc" />
    <link:loc xlink:href="odc-20171031.xsd#odc_Trademarksandpatentsnet" xlink:label="loc_odc_Trademarksandpatentsnet_7093e88d-9f2a-c278-c343-8647963fc189" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_077d07a8-79e6-ef7c-e812-5f2b45805594" xlink:to="loc_odc_Trademarksandpatentsnet_7093e88d-9f2a-c278-c343-8647963fc189" xlink:type="arc" />
    <link:loc xlink:href="odc-20171031.xsd#odc_Customerlistnet" xlink:label="loc_odc_Customerlistnet_4481b601-3a9a-280e-a15f-8647963f0ac6" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_077d07a8-79e6-ef7c-e812-5f2b45805594" xlink:to="loc_odc_Customerlistnet_4481b601-3a9a-280e-a15f-8647963f0ac6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DeferredTaxAssetsNetNoncurrent" xlink:label="loc_us-gaap_DeferredTaxAssetsNetNoncurrent_8df56cc1-dc4c-f82b-bfc1-0248ef95a034" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_077d07a8-79e6-ef7c-e812-5f2b45805594" xlink:to="loc_us-gaap_DeferredTaxAssetsNetNoncurrent_8df56cc1-dc4c-f82b-bfc1-0248ef95a034" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_e6ade192-0839-bdd8-d08b-20387a0e8201" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsNoncurrent_077d07a8-79e6-ef7c-e812-5f2b45805594" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_e6ade192-0839-bdd8-d08b-20387a0e8201" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_68e7c3c1-9b8d-84fe-3a5c-d69c15dfe7a2" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_08bee809-e27e-48c3-da2d-5d52948eb470" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_68e7c3c1-9b8d-84fe-3a5c-d69c15dfe7a2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_8c99d26c-e257-b8ba-86ee-4f792a9452ce" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_68e7c3c1-9b8d-84fe-3a5c-d69c15dfe7a2" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_8c99d26c-e257-b8ba-86ee-4f792a9452ce" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_95ebcb07-1c4a-1ded-365f-edc9cd2fa101" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_68e7c3c1-9b8d-84fe-3a5c-d69c15dfe7a2" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_95ebcb07-1c4a-1ded-365f-edc9cd2fa101" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent_dbbeeff9-fd43-6151-195d-0532728ac216" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_08bee809-e27e-48c3-da2d-5d52948eb470" xlink:to="loc_us-gaap_AssetsCurrent_dbbeeff9-fd43-6151-195d-0532728ac216" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_ec544f28-9c7b-137c-e428-9ae47c2375fc" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_dbbeeff9-fd43-6151-195d-0532728ac216" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_ec544f28-9c7b-137c-e428-9ae47c2375fc" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ShortTermInvestments" xlink:label="loc_us-gaap_ShortTermInvestments_cba84dc8-4958-54c2-1b6f-e02bffbabe75" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_dbbeeff9-fd43-6151-195d-0532728ac216" xlink:to="loc_us-gaap_ShortTermInvestments_cba84dc8-4958-54c2-1b6f-e02bffbabe75" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ReceivablesNetCurrent" xlink:label="loc_us-gaap_ReceivablesNetCurrent_bbf813cd-8531-daad-0362-0abcbe609fb5" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_dbbeeff9-fd43-6151-195d-0532728ac216" xlink:to="loc_us-gaap_ReceivablesNetCurrent_bbf813cd-8531-daad-0362-0abcbe609fb5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaap_InventoryNet_a5201305-cb63-d1e5-f4e7-e25409fb5d3a" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_dbbeeff9-fd43-6151-195d-0532728ac216" xlink:to="loc_us-gaap_InventoryNet_a5201305-cb63-d1e5-f4e7-e25409fb5d3a" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherPrepaidExpenseCurrent" xlink:label="loc_us-gaap_OtherPrepaidExpenseCurrent_f1872ac6-9c1b-bfcf-be43-9e42711f3229" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_dbbeeff9-fd43-6151-195d-0532728ac216" xlink:to="loc_us-gaap_OtherPrepaidExpenseCurrent_f1872ac6-9c1b-bfcf-be43-9e42711f3229" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PrepaidExpenseCurrent" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_4cde1efa-07a8-ded0-f592-2cecba3dedaf" xlink:type="locator" />
    <link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_dbbeeff9-fd43-6151-195d-0532728ac216" xlink:to="loc_us-gaap_PrepaidExpenseCurrent_4cde1efa-07a8-ded0-f592-2cecba3dedaf" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_04e17fb3-9b77-1c98-f460-7f5dd0c01008" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities_6d3ec995-5062-ef92-dd72-b570c1eafdc8" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_04e17fb3-9b77-1c98-f460-7f5dd0c01008" xlink:to="loc_us-gaap_Liabilities_6d3ec995-5062-ef92-dd72-b570c1eafdc8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_a859bb84-8118-88ec-5136-83fdb14e8f32" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_6d3ec995-5062-ef92-dd72-b570c1eafdc8" xlink:to="loc_us-gaap_LiabilitiesCurrent_a859bb84-8118-88ec-5136-83fdb14e8f32" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_e20e4396-1ab7-d9ec-b779-e1a72ae620da" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_a859bb84-8118-88ec-5136-83fdb14e8f32" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_e20e4396-1ab7-d9ec-b779-e1a72ae620da" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccruedMarketingCostsCurrent" xlink:label="loc_us-gaap_AccruedMarketingCostsCurrent_073466e9-e2be-e4b0-bf7c-3c1e90be2873" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_a859bb84-8118-88ec-5136-83fdb14e8f32" xlink:to="loc_us-gaap_AccruedMarketingCostsCurrent_073466e9-e2be-e4b0-bf7c-3c1e90be2873" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_567bfdaf-7a71-0a8c-e33e-b9f7b4096843" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_a859bb84-8118-88ec-5136-83fdb14e8f32" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_567bfdaf-7a71-0a8c-e33e-b9f7b4096843" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_0ff25fd8-f6de-e7fa-c6c3-85d94f17f57b" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_a859bb84-8118-88ec-5136-83fdb14e8f32" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_0ff25fd8-f6de-e7fa-c6c3-85d94f17f57b" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DividendsPayableCurrent" xlink:label="loc_us-gaap_DividendsPayableCurrent_074bd34b-fe55-9059-4d4d-01f7bae9398c" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_a859bb84-8118-88ec-5136-83fdb14e8f32" xlink:to="loc_us-gaap_DividendsPayableCurrent_074bd34b-fe55-9059-4d4d-01f7bae9398c" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_87a74df5-6262-b3a0-1a5b-b344f689ad60" xlink:type="locator" />
    <link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_a859bb84-8118-88ec-5136-83fdb14e8f32" xlink:to="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_87a74df5-6262-b3a0-1a5b-b344f689ad60" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SeniorNotesCurrent" xlink:label="loc_us-gaap_SeniorNotesCurrent_2baa7622-d234-2cec-172e-52429542de89" xlink:type="locator" />
    <link:calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_a859bb84-8118-88ec-5136-83fdb14e8f32" xlink:to="loc_us-gaap_SeniorNotesCurrent_2baa7622-d234-2cec-172e-52429542de89" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LiabilitiesNoncurrent" xlink:label="loc_us-gaap_LiabilitiesNoncurrent_86f5e36c-fcf4-c608-9d6c-02f589962cdc" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_6d3ec995-5062-ef92-dd72-b570c1eafdc8" xlink:to="loc_us-gaap_LiabilitiesNoncurrent_86f5e36c-fcf4-c608-9d6c-02f589962cdc" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SeniorLongTermNotes" xlink:label="loc_us-gaap_SeniorLongTermNotes_157847c1-08e9-f21d-9b66-cabd0f09c923" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_86f5e36c-fcf4-c608-9d6c-02f589962cdc" xlink:to="loc_us-gaap_SeniorLongTermNotes_157847c1-08e9-f21d-9b66-cabd0f09c923" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent" xlink:label="loc_us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent_b2b39bb7-2393-47f6-f818-d757351b4961" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_86f5e36c-fcf4-c608-9d6c-02f589962cdc" xlink:to="loc_us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent_b2b39bb7-2393-47f6-f818-d757351b4961" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" xlink:label="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_0bae88b8-1d8b-a8ef-3832-24e6d176184d" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_86f5e36c-fcf4-c608-9d6c-02f589962cdc" xlink:to="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_0bae88b8-1d8b-a8ef-3832-24e6d176184d" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_b65887e3-1865-ef3e-c8ae-81780cbff9ee" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_86f5e36c-fcf4-c608-9d6c-02f589962cdc" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_b65887e3-1865-ef3e-c8ae-81780cbff9ee" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_2644da13-7baa-0a2f-63e0-0906a691ba01" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_04e17fb3-9b77-1c98-f460-7f5dd0c01008" xlink:to="loc_us-gaap_StockholdersEquity_2644da13-7baa-0a2f-63e0-0906a691ba01" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.oildri.com/role/CondensedConsolidatedStatementsOfCashFlows" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_104af714-3829-5d79-3fb3-059f86c366da" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_975a3fab-7f49-5162-2cb5-31bb1479931f" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_104af714-3829-5d79-3fb3-059f86c366da" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_975a3fab-7f49-5162-2cb5-31bb1479931f" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_00a475d0-9ed4-5ca4-8e09-183f13a0aa46" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_975a3fab-7f49-5162-2cb5-31bb1479931f" xlink:to="loc_us-gaap_ProfitLoss_00a475d0-9ed4-5ca4-8e09-183f13a0aa46" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_506d0408-ea3e-649b-78f3-b2efad83f2d9" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_975a3fab-7f49-5162-2cb5-31bb1479931f" xlink:to="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_506d0408-ea3e-649b-78f3-b2efad83f2d9" xlink:type="arc" />
    <link:loc xlink:href="odc-20171031.xsd#odc_IncreaseDecreaseInAccountsPayableAndIncomeTaxesPayable" xlink:label="loc_odc_IncreaseDecreaseInAccountsPayableAndIncomeTaxesPayable_98d149c0-4351-5b5c-080c-864796200f15" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_506d0408-ea3e-649b-78f3-b2efad83f2d9" xlink:to="loc_odc_IncreaseDecreaseInAccountsPayableAndIncomeTaxesPayable_98d149c0-4351-5b5c-080c-864796200f15" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_ce728eee-c863-e8aa-a864-1d7a3b12d862" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_506d0408-ea3e-649b-78f3-b2efad83f2d9" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_ce728eee-c863-e8aa-a864-1d7a3b12d862" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncreaseDecreaseInDeferredCompensation" xlink:label="loc_us-gaap_IncreaseDecreaseInDeferredCompensation_36e55ee5-04cd-2301-ca0c-e92757ba5e08" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_506d0408-ea3e-649b-78f3-b2efad83f2d9" xlink:to="loc_us-gaap_IncreaseDecreaseInDeferredCompensation_36e55ee5-04cd-2301-ca0c-e92757ba5e08" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncreaseDecreaseInPensionAndPostretirementObligations" xlink:label="loc_us-gaap_IncreaseDecreaseInPensionAndPostretirementObligations_afed977f-1164-fe15-838b-44ff1f1a794a" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_506d0408-ea3e-649b-78f3-b2efad83f2d9" xlink:to="loc_us-gaap_IncreaseDecreaseInPensionAndPostretirementObligations_afed977f-1164-fe15-838b-44ff1f1a794a" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_7a016eeb-d472-4272-2fad-97e749a6fbc2" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_506d0408-ea3e-649b-78f3-b2efad83f2d9" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_7a016eeb-d472-4272-2fad-97e749a6fbc2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_d8c0a214-0b0d-1fc8-686b-ed5eca49895f" xlink:type="locator" />
    <link:calculationArc order="6" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_506d0408-ea3e-649b-78f3-b2efad83f2d9" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_d8c0a214-0b0d-1fc8-686b-ed5eca49895f" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_e99fae14-a0f3-93f9-f0e6-bc9b4dc580ef" xlink:type="locator" />
    <link:calculationArc order="7" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_506d0408-ea3e-649b-78f3-b2efad83f2d9" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_e99fae14-a0f3-93f9-f0e6-bc9b4dc580ef" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_bae7c33e-3fd3-413e-0f2e-aaa9daaa49d7" xlink:type="locator" />
    <link:calculationArc order="8" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_506d0408-ea3e-649b-78f3-b2efad83f2d9" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_bae7c33e-3fd3-413e-0f2e-aaa9daaa49d7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables_96572710-82f1-1b2a-13b2-99b2b2ebc8e0" xlink:type="locator" />
    <link:calculationArc order="9" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_506d0408-ea3e-649b-78f3-b2efad83f2d9" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables_96572710-82f1-1b2a-13b2-99b2b2ebc8e0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:label="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_4f25f358-0eb6-8948-fd67-cb4acfcd66ec" xlink:type="locator" />
    <link:calculationArc order="10" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_506d0408-ea3e-649b-78f3-b2efad83f2d9" xlink:to="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_4f25f358-0eb6-8948-fd67-cb4acfcd66ec" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_51b81a6f-f6af-160e-e526-5abd0f450976" xlink:type="locator" />
    <link:calculationArc order="11" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_506d0408-ea3e-649b-78f3-b2efad83f2d9" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_51b81a6f-f6af-160e-e526-5abd0f450976" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_91674616-989d-90e8-1302-b52ff7a33098" xlink:type="locator" />
    <link:calculationArc order="12" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_506d0408-ea3e-649b-78f3-b2efad83f2d9" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_91674616-989d-90e8-1302-b52ff7a33098" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities" xlink:label="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities_0b54a9a6-abc8-9365-0a88-485763fb0af9" xlink:type="locator" />
    <link:calculationArc order="13" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_506d0408-ea3e-649b-78f3-b2efad83f2d9" xlink:to="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities_0b54a9a6-abc8-9365-0a88-485763fb0af9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_432488d8-28ca-5b8d-679b-29be120957b5" xlink:type="locator" />
    <link:calculationArc order="14" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_506d0408-ea3e-649b-78f3-b2efad83f2d9" xlink:to="loc_us-gaap_ShareBasedCompensation_432488d8-28ca-5b8d-679b-29be120957b5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DepreciationAmortizationAndAccretionNet" xlink:label="loc_us-gaap_DepreciationAmortizationAndAccretionNet_31fc303b-1b94-6362-1b8a-157609a23bce" xlink:type="locator" />
    <link:calculationArc order="15" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_506d0408-ea3e-649b-78f3-b2efad83f2d9" xlink:to="loc_us-gaap_DepreciationAmortizationAndAccretionNet_31fc303b-1b94-6362-1b8a-157609a23bce" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments" xlink:label="loc_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_fe59972c-181e-b516-7ec1-09a40fc27526" xlink:type="locator" />
    <link:calculationArc order="16" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_506d0408-ea3e-649b-78f3-b2efad83f2d9" xlink:to="loc_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_fe59972c-181e-b516-7ec1-09a40fc27526" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_95f67350-d3ec-5d41-e3b2-a4fe7a19e15b" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_104af714-3829-5d79-3fb3-059f86c366da" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_95f67350-d3ec-5d41-e3b2-a4fe7a19e15b" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_991d89e2-25f7-1061-f5f8-86acc91f176b" xlink:type="locator" />
    <link:calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_95f67350-d3ec-5d41-e3b2-a4fe7a19e15b" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_991d89e2-25f7-1061-f5f8-86acc91f176b" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:label="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_da5d3613-0426-0efc-e877-f02868c1f6ef" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_95f67350-d3ec-5d41-e3b2-a4fe7a19e15b" xlink:to="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_da5d3613-0426-0efc-e877-f02868c1f6ef" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PaymentsToAcquireShortTermInvestments" xlink:label="loc_us-gaap_PaymentsToAcquireShortTermInvestments_7eefdb79-b488-fe99-9b8e-a51ddf6de5ad" xlink:type="locator" />
    <link:calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_95f67350-d3ec-5d41-e3b2-a4fe7a19e15b" xlink:to="loc_us-gaap_PaymentsToAcquireShortTermInvestments_7eefdb79-b488-fe99-9b8e-a51ddf6de5ad" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ProceedsFromSaleOfShortTermInvestments" xlink:label="loc_us-gaap_ProceedsFromSaleOfShortTermInvestments_e1d5c175-5fec-c1e5-c00f-3705673f3dcd" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_95f67350-d3ec-5d41-e3b2-a4fe7a19e15b" xlink:to="loc_us-gaap_ProceedsFromSaleOfShortTermInvestments_e1d5c175-5fec-c1e5-c00f-3705673f3dcd" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_08614f0c-c3a2-4c92-7c1d-aed5de18fe70" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_104af714-3829-5d79-3fb3-059f86c366da" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_08614f0c-c3a2-4c92-7c1d-aed5de18fe70" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RepaymentsOfSeniorDebt" xlink:label="loc_us-gaap_RepaymentsOfSeniorDebt_07f69ded-52da-8e8c-b4b7-f6809e6b5eb4" xlink:type="locator" />
    <link:calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_08614f0c-c3a2-4c92-7c1d-aed5de18fe70" xlink:to="loc_us-gaap_RepaymentsOfSeniorDebt_07f69ded-52da-8e8c-b4b7-f6809e6b5eb4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PaymentsOfDividendsCommonStock" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_a269f982-b168-8b73-b7b4-38da20c0fb35" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_08614f0c-c3a2-4c92-7c1d-aed5de18fe70" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_a269f982-b168-8b73-b7b4-38da20c0fb35" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_fc2ca57d-dc62-7ce6-b2c4-25896bddd1fc" xlink:type="locator" />
    <link:calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_08614f0c-c3a2-4c92-7c1d-aed5de18fe70" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_fc2ca57d-dc62-7ce6-b2c4-25896bddd1fc" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" xlink:label="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_11b1e641-cd86-3d66-b07d-893757bffb5e" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_08614f0c-c3a2-4c92-7c1d-aed5de18fe70" xlink:to="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_11b1e641-cd86-3d66-b07d-893757bffb5e" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents_9f72449f-62f6-71b1-0128-c7088f4f3527" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_104af714-3829-5d79-3fb3-059f86c366da" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents_9f72449f-62f6-71b1-0128-c7088f4f3527" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.oildri.com/role/CondensedConsolidatedStatementsOfComprehensiveIncome" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_d23b2d61-1407-f3f5-ba7b-69860a5b50dd" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_00a475d0-9ed4-5ca4-8e09-183f13a0aa46" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_d23b2d61-1407-f3f5-ba7b-69860a5b50dd" xlink:to="loc_us-gaap_ProfitLoss_00a475d0-9ed4-5ca4-8e09-183f13a0aa46" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_369c90d1-6da1-8050-c604-fad527301a92" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_d23b2d61-1407-f3f5-ba7b-69860a5b50dd" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_369c90d1-6da1-8050-c604-fad527301a92" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_d8bc96e3-060f-f5ff-d324-c7cecf3273f4" xlink:type="locator" />
    <link:calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_369c90d1-6da1-8050-c604-fad527301a92" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_d8bc96e3-060f-f5ff-d324-c7cecf3273f4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_7263cb18-5b58-9955-8575-e8eaa5dac989" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_369c90d1-6da1-8050-c604-fad527301a92" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_7263cb18-5b58-9955-8575-e8eaa5dac989" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.oildri.com/role/CondensedConsolidatedStatementsOfIncomeAndRetainedEarnings" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_00a475d0-9ed4-5ca4-8e09-183f13a0aa46" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_5ba85eae-c4c2-72cc-f9e5-b0edc41783e5" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_00a475d0-9ed4-5ca4-8e09-183f13a0aa46" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_5ba85eae-c4c2-72cc-f9e5-b0edc41783e5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_800dbb3e-0416-e0ab-a30e-cfaeb17b8c4c" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_5ba85eae-c4c2-72cc-f9e5-b0edc41783e5" xlink:to="loc_us-gaap_OperatingIncomeLoss_800dbb3e-0416-e0ab-a30e-cfaeb17b8c4c" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaap_GrossProfit_1fd2c3b5-12a4-0f06-9816-c6d97d4ac6df" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_800dbb3e-0416-e0ab-a30e-cfaeb17b8c4c" xlink:to="loc_us-gaap_GrossProfit_1fd2c3b5-12a4-0f06-9816-c6d97d4ac6df" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SalesRevenueGoodsNet" xlink:label="loc_us-gaap_SalesRevenueGoodsNet_dec93aa4-b03e-3954-a272-eeb250ead290" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_1fd2c3b5-12a4-0f06-9816-c6d97d4ac6df" xlink:to="loc_us-gaap_SalesRevenueGoodsNet_dec93aa4-b03e-3954-a272-eeb250ead290" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CostOfGoodsSold" xlink:label="loc_us-gaap_CostOfGoodsSold_758fda00-4ec6-2a1a-3601-b22661c1a7ff" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_1fd2c3b5-12a4-0f06-9816-c6d97d4ac6df" xlink:to="loc_us-gaap_CostOfGoodsSold_758fda00-4ec6-2a1a-3601-b22661c1a7ff" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_33158828-aa18-5ead-beab-c284c08cb606" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_800dbb3e-0416-e0ab-a30e-cfaeb17b8c4c" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_33158828-aa18-5ead-beab-c284c08cb606" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NonoperatingIncomeExpense" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_9fa8ee46-9d2e-0b63-b65e-c559fb6868a2" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_5ba85eae-c4c2-72cc-f9e5-b0edc41783e5" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_9fa8ee46-9d2e-0b63-b65e-c559fb6868a2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_InterestExpenseDebt" xlink:label="loc_us-gaap_InterestExpenseDebt_b9b203b7-ff42-afaa-638c-417b649aa4c7" xlink:type="locator" />
    <link:calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_9fa8ee46-9d2e-0b63-b65e-c559fb6868a2" xlink:to="loc_us-gaap_InterestExpenseDebt_b9b203b7-ff42-afaa-638c-417b649aa4c7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_InvestmentIncomeInterest" xlink:label="loc_us-gaap_InvestmentIncomeInterest_ed735562-dfa2-f50c-cfbd-c90d6a562718" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_9fa8ee46-9d2e-0b63-b65e-c559fb6868a2" xlink:to="loc_us-gaap_InvestmentIncomeInterest_ed735562-dfa2-f50c-cfbd-c90d6a562718" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_b936f21a-1a1f-465e-d82c-5e014c9c5399" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_9fa8ee46-9d2e-0b63-b65e-c559fb6868a2" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_b936f21a-1a1f-465e-d82c-5e014c9c5399" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_9b166675-b7b2-1067-1806-03b1ee0126f1" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_00a475d0-9ed4-5ca4-8e09-183f13a0aa46" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_9b166675-b7b2-1067-1806-03b1ee0126f1" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.oildri.com/role/DocumentAndEntityInformation" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/FairValueMeasurements" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/FairValueMeasurementsFairValueMeasurementsPolicies" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/FairValueMeasurementsNarrativeDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/GoodwillAndOtherIntangiblesDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/GoodwillAndOtherIntangiblesNarrativeDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/GoodwillAndOtherIntangiblesNotes" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/GoodwillAndOtherIntangiblesTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/Inventories" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/InventoriesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaap_InventoryNet_a5201305-cb63-d1e5-f4e7-e25409fb5d3a" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_InventoryFinishedGoods" xlink:label="loc_us-gaap_InventoryFinishedGoods_58a767dc-544b-b9e2-38ae-a5daf42f4bd2" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_a5201305-cb63-d1e5-f4e7-e25409fb5d3a" xlink:to="loc_us-gaap_InventoryFinishedGoods_58a767dc-544b-b9e2-38ae-a5daf42f4bd2" xlink:type="arc" />
    <link:loc xlink:href="odc-20171031.xsd#odc_PackagingInventory" xlink:label="loc_odc_PackagingInventory_843cd7ad-0541-6fa7-9df7-864796203b74" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_a5201305-cb63-d1e5-f4e7-e25409fb5d3a" xlink:to="loc_odc_PackagingInventory_843cd7ad-0541-6fa7-9df7-864796203b74" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherInventory" xlink:label="loc_us-gaap_OtherInventory_1ce79626-523e-377b-005f-b8904c05603b" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_a5201305-cb63-d1e5-f4e7-e25409fb5d3a" xlink:to="loc_us-gaap_OtherInventory_1ce79626-523e-377b-005f-b8904c05603b" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.oildri.com/role/InventoriesLevel2Policies" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/InventoriesLevel3Tables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/InventoriesNarrativeDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/NewAccountingPronouncements" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/NewAccountingPronouncementsNarrativeDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/OperatingSegments" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/OperatingSegmentsDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/OperatingSegmentsLevel2Policies" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/OperatingSegmentsNarrativeDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/OperatingSegmentsTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/PensionAndOtherPostretirementBenefits" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/PensionAndOtherPostretirementBenefitsAssumptionsDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/PensionAndOtherPostretirementBenefitsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_fb35567d-af94-e986-7425-f369c05384fc" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_f2ed32d2-85ad-f58f-ab2d-3b2179460e9b" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_fb35567d-af94-e986-7425-f369c05384fc" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_f2ed32d2-85ad-f58f-ab2d-3b2179460e9b" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_cd88e803-25ae-d4fb-0989-daba14b2ac68" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_fb35567d-af94-e986-7425-f369c05384fc" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_cd88e803-25ae-d4fb-0989-daba14b2ac68" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_7493028d-92b4-42b2-4575-fa8ea8ba2bc0" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_fb35567d-af94-e986-7425-f369c05384fc" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_7493028d-92b4-42b2-4575-fa8ea8ba2bc0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_2d2b6abe-d7df-698d-456b-f525d8c242b0" xlink:type="locator" />
    <link:calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_fb35567d-af94-e986-7425-f369c05384fc" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_2d2b6abe-d7df-698d-456b-f525d8c242b0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_c19f8e1b-2030-51d6-2fba-848f04e86d5a" xlink:type="locator" />
    <link:calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_fb35567d-af94-e986-7425-f369c05384fc" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_c19f8e1b-2030-51d6-2fba-848f04e86d5a" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.oildri.com/role/PensionAndOtherPostretirementBenefitsNarrativeDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/PensionAndOtherPostretirementBenefitsTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/RelatedPartyTransactionsDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/RelatedPartyTransactionsNotes" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/StockBasedCompensation" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/StockBasedCompensationNarrativeDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/StockBasedCompensationSummaryOfRestrictedStockTransactionsDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.oildri.com/role/StockBasedCompensationTables" xlink:type="extended" />
</link:linkbase>
