{"id":19217,"date":"2026-01-21T14:42:19","date_gmt":"2026-01-21T14:42:19","guid":{"rendered":"https:\/\/dressagetoday.com\/?p=19217"},"modified":"2026-01-21T16:50:44","modified_gmt":"2026-01-21T16:50:44","slug":"mare-gestation-calculator","status":"publish","type":"post","link":"https:\/\/dressagetoday.com\/horse-owner-tools\/mare-gestation-calculator\/","title":{"rendered":"Mare Gestation Calculator"},"content":{"rendered":"\n<p>Are you wondering when your pregnant mare will foal? Use our Mare Gestation Calculator to find out!&nbsp;<\/p>\n\n\n\n<p>This calculator gives a gestation range of 331-346 days from breeding (adding a day for ovulation to a 330- to 345-day range).<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Individual mares tend to have their own gestation length tendencies.<\/li>\n\n\n\n<li>Ponies, on average, tend to have shorter gestation periods than full-size horses.<\/li>\n\n\n\n<li>This calculator is not intended for gestation estimation in donkeys or other equids\u2014only horses.<\/li>\n<\/ul>\n\n\n\n<p><em>The Mare Gestation Calculator is intended for use only as a foaling date estimation tool for horses. It does not consider differences between individual mares. Dressage Today is not responsible for problems or injuries arising from the use\/misuse of this tool or for any inaccuracy in the foaling date estimate of an individual horse.<\/em><\/p>\n\n\n<script>\nvar gform;gform||(document.addEventListener(\"gform_main_scripts_loaded\",function(){gform.scriptsLoaded=!0}),document.addEventListener(\"gform\/theme\/scripts_loaded\",function(){gform.themeScriptsLoaded=!0}),window.addEventListener(\"DOMContentLoaded\",function(){gform.domLoaded=!0}),gform={domLoaded:!1,scriptsLoaded:!1,themeScriptsLoaded:!1,isFormEditor:()=>\"function\"==typeof InitializeEditor,callIfLoaded:function(o){return!(!gform.domLoaded||!gform.scriptsLoaded||!gform.themeScriptsLoaded&&!gform.isFormEditor()||(gform.isFormEditor()&&console.warn(\"The use of gform.initializeOnLoaded() is deprecated in the form editor context and will be removed in Gravity Forms 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data-tabindex='0'><input id=\"input_d7a6db9dd654e595355eeec24f75b368\" class=\"gfield_recaptcha_response\" type=\"hidden\" name=\"input_d7a6db9dd654e595355eeec24f75b368\" value=\"\"\/><\/div>\n                        <div class='gform-body gform_body'><div id='gform_fields_21' class='gform_fields top_label form_sublabel_below description_above validation_below'><div id=\"field_21_40\" class=\"gfield gfield--type-honeypot gform_validation_container field_sublabel_below gfield--has-description field_description_above field_validation_below gfield_visibility_visible\"  ><label class='gfield_label gform-field-label' for='input_21_40'>Instagram<\/label><div class='gfield_description' id='gfield_description_21_40'>This field is for validation purposes and should be left unchanged.<\/div><div class='ginput_container'><input name='input_40' id='input_21_40' type='text' value='' autocomplete='new-password'\/><\/div><\/div><div id=\"field_21_39\" class=\"gfield gfield--type-section gsection 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calculator.<\/p>\n","protected":false},"author":4048,"featured_media":19224,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[6487,7132],"tags":[],"class_list":["post-19217","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-plus","category-horse-owner-tools"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.6 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Mare Gestation Calculator - Dressage Today<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dressagetoday.com\/horse-owner-tools\/mare-gestation-calculator\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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