{"id":66468,"date":"2026-10-06T17:17:43","date_gmt":"2026-10-06T14:17:43","guid":{"rendered":"https:\/\/wpcalc.com\/en\/?p=66468"},"modified":"2026-10-06T17:17:43","modified_gmt":"2026-10-06T14:17:43","slug":"acid-base-titration-calculator","status":"publish","type":"post","link":"https:\/\/wpcalc.com\/en\/chemistry\/acid-base-titration-calculator\/","title":{"rendered":"Acid\u2013Base Titration Calculator"},"content":{"rendered":"<section class=\"not-prose calculator-box\" aria-labelledby=\"calculator-title\"><div class=\"flex items-baseline sm:items-center justify-between gap-2 sm:gap-3\"><div class=\"flex flex-col sm:flex-row sm:items-center gap-2\"><span class=\"icon icon-calculator text-primary-700! text-base! dark:text-primary-300!\" aria-hidden=\"true\"><\/span><h2 id=\"calculator-title\" class=\"text-lg font-display font-bold\">Find an Unknown Concentration from Titration Data<\/h2><\/div><div class=\"calcdash-favorite group\">\n  <button type=\"button\" class=\"favorite\" id=\"favorite\" data-favorite-id=\"66468\" data-favorite-title=\"Titration\" data-favorite-url=\"https:\/\/wpcalc.com\/en\/chemistry\/acid-base-titration-calculator\/\" data-favorite-excerpt=\"Calculate the unknown concentration of an acid or base from titration data. Enter the concentration and volume of the known solution, the volume of the unknown solution, and the reaction ratio.\" aria-label=\"Add to Favorites\" data-favorite-icon=\"icon icon-chemistry-1\">\n    <span class=\"icon icon-shape-star-empty\" aria-hidden=\"true\"><\/span>\n  <\/button>\n  <div class=\"calcdash-favorite__tip\" aria-hidden=\"true\">\n   <span class=\"favorite-tooltip\" id=\"favorite-tooltip\"><\/span>\n  <\/div>\n  <span class=\"sr-only\" role=\"status\" id=\"favorite-status\"><\/span>\n<\/div><\/div><form action=\"https:\/\/wpcalc.com\/en\/chemistry\/acid-base-titration-calculator\/\" method=\"POST\" class=\"calculator\" id=\"calculator-66468\" data-post=\"66468\"><fieldset class=\"fieldset-input is-1\"><legend class=\"sr-only\">Input Fields<\/legend><div class=\"is-single field\" id=\"input-1\"><span class=\"font-semibold\">Known Solution (Acid or Base)<\/span><\/div><div class=\"field has-term\" id=\"input-2\"><label for=\"field-2\">Concentration of Known Solution<\/label><div class=\"term\">C\u2081<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><div class=\"field-group\"><input type=\"text\" name=\"concentration_of_known_solution\" id=\"field-2\" aria-describedby=\"calc-info-2\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" placeholder=\"e.g. 0.1\" min=\"0\" value=\"0.1\"\/><div class=\"grid grid-cols-1\"><select id=\"field-3\" name=\"unit\" aria-label=\"Unit\"><option value=\"mol_l\" selected>mol\/L<\/option><option value=\"mmol_l\">mmol\/L<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><small id=\"calc-info-2\">Molar concentration of the standard (titrant or analyte) solution<\/small><\/div><div class=\"field has-term\" id=\"input-3\"><label for=\"field-4\">Volume of Known Solution<\/label><div class=\"term\">V\u2081<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><div class=\"field-group\"><input type=\"text\" name=\"volume_of_known_solution\" id=\"field-4\" aria-describedby=\"calc-info-4\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" placeholder=\"e.g. 25\" min=\"0\" value=\"25\"\/><div class=\"grid grid-cols-1\"><select id=\"field-5\" name=\"unit\" aria-label=\"Unit\"><option value=\"ml\" selected>mL<\/option><option value=\"l\">L<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><small id=\"calc-info-4\">Volume dispensed or measured at the equivalence point<\/small><\/div><div class=\"is-single field\" id=\"input-4\"><span class=\"font-semibold\">Unknown Solution<\/span><\/div><div class=\"field has-term\" id=\"input-5\"><label for=\"field-7\">Volume of Unknown Solution<\/label><div class=\"term\">V\u2082<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><div class=\"field-group\"><input type=\"text\" name=\"volume_of_unknown_solution\" id=\"field-7\" aria-describedby=\"calc-info-7\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" placeholder=\"e.g. 20\" min=\"0\" value=\"20\"\/><div class=\"grid grid-cols-1\"><select id=\"field-8\" name=\"unit\" aria-label=\"Unit\"><option value=\"ml\" selected>mL<\/option><option value=\"l\">L<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><small id=\"calc-info-7\">Volume of the acid or base whose concentration you want to find<\/small><\/div><div class=\"field is-single\" id=\"input-6\"><label for=\"field-9\">Reaction Equivalents (Known : Unknown)<\/label><div class=\"grid grid-cols-1\"><select id=\"field-9\" name=\"reaction_equivalents_known_unknown\"><option value=\"r_1_1\" selected>1 : 1 \u2014 HCl + NaOH, HNO\u2083 + KOH<\/option><option value=\"r_1_2\">1 : 2 \u2014 H\u2082SO\u2084 + 2 NaOH (diprotic acid)<\/option><option value=\"r_2_1\">2 : 1 \u2014 2 HCl + Ca(OH)\u2082 (dibasic base)<\/option><option value=\"r_1_3\">1 : 3 \u2014 H\u2083PO\u2084 + 3 NaOH (triprotic acid)<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><\/fieldset><div class=\"buttons\"><button type=\"submit\" data-text=\"Re-Calculate\" id=\"calculate-button\" data-post=\"66468\">Calculate<\/button><button type=\"reset\">Reset<\/button><\/div><div class=\"field is-checkbox hidden!\" id=\"field-auto-calc\"><input type=\"checkbox\" id=\"auto-calc\"><label for=\"auto-calc\">Calculate automatically<\/label><small>If enabled, the result will update automatically when you change any value.<\/small><\/div><div class=\"fieldset-result is-hidden\" aria-labelledby=\"result-title\" aria-live=\"polite\" role=\"region\"> <h3 class=\"result-title bg-gradient-to-r from-primary-50 to-gray-50 dark:from-primary-900 dark:to-gray-800\" id=\"result-title\"><span class=\"icon icon-s-pulse\" aria-hidden=\"true\"><\/span> Titration Results<\/h3><div class=\"result-box\"><div class=\"field-result\" id=\"output-1\"><span class=\"field-title\"><span>Unknown Concentration<\/span><span class=\"result-term\">C\u2082<\/span><\/span><span class=\"field-value\" id=\"result-1\" data-unit=\"mol\/L\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copy Result\" aria-label=\"Copy Result\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-2\"><span class=\"field-title\"><span>Unknown Concentration<\/span><\/span><span class=\"field-value\" id=\"result-2\" data-unit=\"mmol\/L\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copy Result\" aria-label=\"Copy Result\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-3\"><span class=\"field-title\"><span>Amount of Unknown Reacted<\/span><\/span><span class=\"field-value\" id=\"result-3\" data-unit=\"mmol\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copy Result\" aria-label=\"Copy Result\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><\/div><div class=\"result-actions\"><button type=\"button\" class=\"copy-link\"><svg viewBox=\"0 0 20 20\" fill=\"currentColor\" aria-hidden=\"true\"><path d=\"M12.232 4.232a2.5 2.5 0 0 1 3.536 3.536l-1.225 1.224a.75.75 0 0 0 1.061 1.06l1.224-1.224a4 4 0 0 0-5.656-5.656l-3 3a4 4 0 0 0 .225 5.865.75.75 0 0 0 .977-1.138 2.5 2.5 0 0 1-.142-3.667l3-3Z\"\/><path d=\"M11.603 7.963a.75.75 0 0 0-.977 1.138 2.5 2.5 0 0 1 .142 3.667l-3 3a2.5 2.5 0 0 1-3.536-3.536l1.225-1.224a.75.75 0 0 0-1.061-1.06l-1.224 1.224a4 4 0 1 0 5.656 5.656l3-3a4 4 0 0 0-.225-5.865Z\"\/><\/svg><span class=\"copy-link__text\">Copy link to this calculation<\/span><\/button><span class=\"sr-only\" role=\"status\" id=\"copy-link-status\"><\/span><\/div><\/div><a href=\"#respond\" class=\"hidden transition-opacity duration-300 opacity-0 w-50 text-sm justify-center items-center gap-2 px-4 py-2 rounded bg-gray-200 text-gray-700 hover:bg-gray-300\" id=\"leave-comment\"><span class=\"icon icon-comments\" aria-hidden=\"true\"><\/span>Leave a Comment<\/a><\/form><\/section><section id=\"calc-reactions\" class=\"not-prose hidden my-12 bg-gradient-to-r from-primary-50 to-gray-50 border border-indigo-100 rounded-xl px-6 py-4 shadow-sm\" data-post=\"66468\" aria-live=\"polite\" aria-labelledby=\"calc-reactions-title\"><p id=\"calc-reactions-title\" class=\"text-sm text-gray-500 text-center mb-2\">How did this result make you feel?<\/p><div role=\"group\" aria-labelledby=\"calc-reactions-title\" class=\"grid grid-cols-3 sm:flex sm:flex-row sm:justify-around gap-4 sm:items-center sm:flex-wrap\"><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"like\"><span class=\"reaction-count\" data-reaction-count=\"like\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude00 <\/span><span class=\"reaction-description font-medium\">Like <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"helpful\"><span class=\"reaction-count\" data-reaction-count=\"helpful\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\udca1 <\/span><span class=\"reaction-description font-medium\">Helpful <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"confused\"><span class=\"reaction-count\" data-reaction-count=\"confused\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude15 <\/span><span class=\"reaction-description font-medium\">Confused <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"disappointed\"><span class=\"reaction-count\" data-reaction-count=\"disappointed\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude1e <\/span><span class=\"reaction-description font-medium\">Disappointed <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"inaccurate\"><span class=\"reaction-count\" data-reaction-count=\"inaccurate\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\u274c <\/span><span class=\"reaction-description font-medium\">Inaccurate <\/span><\/button><\/div><div id=\"reaction-message\" class=\"hidden mt-8 rounded-md border border-primary-100 bg-white\/50 backdrop-blur-sm px-4 py-2 text-sm text-center shadow-sm\"><\/div><\/section><div class=\"calcdash-ad not-prose calcdash-ad--calc_result calcdash-ad--in-article\"><ins class=\"adsbygoogle\" style=\"display:block\" data-ad-client=\"ca-pub-1721569815777345\" data-ad-slot=\"6317458308\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\"><\/ins><script>(adsbygoogle = window.adsbygoogle || []).push({});<\/script><\/div>\n<style id=\"wpcoderpro-inline-1\">.formula-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section class=\"formula-box\" aria-labelledby=\"formula-title\">\r\n\t<div id=\"formula-title\" class=\"not-prose font-display mb-4\"><span class=\"icon icon-formula\" aria-hidden=\"true\"><\/span><h2>Titration Formula<\/h2><\/div>\r\n\t<figure class=\"not-prose formula\">\r\n\t\t<figcaption class=\"formula-title\">Formula<\/figcaption>\r\n\t\t<div class=\"text-base text-gray-800\" id=\"formula\">\n\\[ C_1 V_1 n_2 = C_2 V_2 n_1 \\quad\\Longrightarrow\\quad C_2 = \\frac{C_1 \\, V_1 \\, n_2}{n_1 \\, V_2} \\]<\/div>\r\n\t<\/figure>\r\n\t<\/p>\n<p><strong>Where:<\/strong><\/p>\n<ul>\n<li>\\(C_1\\) \u2014 concentration of the known solution (mol\/L)<\/li>\n<li>\\(V_1\\) \u2014 volume of the known solution at the equivalence point (L)<\/li>\n<li>\\(V_2\\) \u2014 volume of the unknown solution (L)<\/li>\n<li>\\(n_1\\), \\(n_2\\) \u2014 stoichiometric coefficients of the known and unknown reactant in the balanced equation<\/li>\n<li>\\(C_2\\) \u2014 concentration of the unknown solution (mol\/L)<\/li>\n<\/ul>\n<p>At the equivalence point the number of reaction equivalents supplied by both solutions is equal, which means the moles of each reactant are in the same ratio as their coefficients in the balanced equation.<\/p>\n<p>\r\n<\/section>\n<style id=\"wpcoderpro-inline-459\">.calculation-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section id=\"calculation\" class=\"calculation-box\" aria-labelledby=\"calculation-title\">\r\n\t<div id=\"calculation-title\" class=\"not-prose font-display\"><span class=\"icon icon-unordered-list\" aria-hidden=\"true\"><\/span><h2>Titration \u2013 Calculation Example<\/h2><\/div>\r\n\r\n<\/p>\n<p><strong>Example:<\/strong> 25.00 mL of 0.1 mol\/L sodium hydroxide solution exactly neutralises 20.00 mL of a hydrochloric acid solution of unknown concentration (HCl + NaOH, a 1 : 1 reaction).<\/p>\n<p>\\[ n(\\text{NaOH}) = C_1 V_1 = 0.1 \\ \\tfrac{\\text{mol}}{\\text{L}} \\times 0.025\\ \\text{L} = 0.0025\\ \\text{mol} = 2.5\\ \\text{mmol} \\]<\/p>\n<p>\\[ C_2 = \\frac{C_1 V_1}{V_2} = \\frac{0.1 \\times 0.025}{0.020} = 0.125\\ \\tfrac{\\text{mol}}{\\text{L}} \\]<\/p>\n<p><strong>Result:<\/strong> the HCl concentration is 0.125 mol\/L (125 mmol\/L), and the amount of acid that reacted is 2.5 mmol.<\/p>\n<p>\n\r\n<\/section>\n<h2>How to Use the Titration Calculator<\/h2>\n<ol>\n<li>Enter the <strong>Concentration of Known Solution<\/strong> and choose mol\/L or mmol\/L as the unit.<\/li>\n<li>Enter the <strong>Volume of Known Solution<\/strong> dispensed or measured at the equivalence point, and select mL or L.<\/li>\n<li>Enter the <strong>Volume of Unknown Solution<\/strong> \u2014 the acid or base whose concentration you want to find \u2014 with its unit.<\/li>\n<li>Choose the <strong>Reaction Equivalents (Known : Unknown)<\/strong> ratio from the balanced chemical equation: 1 : 1 for HCl + NaOH type reactions, 1 : 2 for a diprotic acid such as H\u2082SO\u2084, 2 : 1 for a dibasic base such as Ca(OH)\u2082, and 1 : 3 for a triprotic acid such as H\u2083PO\u2084.<\/li>\n<li>Read the <strong>Unknown Concentration<\/strong> in mol\/L and mmol\/L, together with the <strong>Amount of Unknown Reacted<\/strong> in mmol.<\/li>\n<\/ol>\n<h2>What Is Acid\u2013Base Titration?<\/h2>\n<p>Titration is a laboratory technique used to find the concentration of an acid or base by reacting it with a standard solution of known concentration. The standard solution is added gradually from a burette until the reaction reaches the <strong>equivalence point<\/strong> \u2014 the moment at which exactly enough titrant has been added to react with all of the substance being analysed. An indicator or a pH meter signals when this point is reached.<\/p>\n<p>Because the volumes and the concentration of the standard solution are known precisely, the unknown concentration follows directly from the stoichiometry of the reaction. For a simple 1 : 1 neutralisation such as HCl + NaOH, the moles of acid equal the moles of base at the equivalence point. For reactions with different stoichiometry, the coefficient ratio from the balanced equation must be taken into account \u2014 this is exactly what the reaction ratio selector in the calculator does.<\/p>\n<p>The result, \\(C_2\\), tells you how many moles of the unknown acid or base were present in each litre of the original sample. Multiplying \\(C_2\\) by \\(V_2\\) gives the total amount that reacted, which the calculator also reports in millimoles. Note that the equivalence point (a stoichiometric concept) may differ slightly from the endpoint you observe experimentally, since indicators change colour over a small pH range.<\/p>\n<h2>Assumptions and Practical Tips<\/h2>\n<ul>\n<li><strong>Balanced equation required:<\/strong> the calculator assumes the reaction goes to completion at the equivalence point and that you have chosen the correct molar ratio. If you are unsure of the ratio, first balance the reaction with the <a href=\"https:\/\/wpcalc.com\/en\/chemistry\/balancing-chemical-equations\/\">Chemical Equation Balancer<\/a>.<\/li>\n<li><strong>Units are handled automatically:<\/strong> all inputs are converted internally to mol and L, so you can mix units (e.g. mmol\/L with mL) without extra steps.<\/li>\n<li><strong>Monoprotic vs. polyprotic acids:<\/strong> for a polyprotic acid such as H\u2082SO\u2084 or H\u2083PO\u2084, the ratio depends on how many protons actually react under your conditions. The preset ratios (1 : 2, 1 : 3) assume complete neutralisation of all acidic protons.<\/li>\n<li><strong>Accuracy depends on your data:<\/strong> read the burette at the bottom of the meniscus, rinse all glassware, and account for the indicator blank. Averaging several consistent titrations greatly improves reliability.<\/li>\n<li><strong>Dilution first?<\/strong> This calculator finds an unknown concentration from titration data. If you are simply diluting a solution of known concentration, use the <a href=\"https:\/\/wpcalc.com\/en\/chemistry\/c1v1-c2v2\/\">C1V1 = C2V2 dilution calculator<\/a> instead.<\/li>\n<li>Once you know the molar amount, you can convert it to particles with the <a href=\"https:\/\/wpcalc.com\/en\/chemistry\/convert-atoms-to-moles\/\">Convert Atoms to Moles calculator<\/a>; for a related analytical application, see the <a href=\"https:\/\/wpcalc.com\/en\/chemistry\/estimation-of-calcium\/\">Estimation of Calcium calculator<\/a>.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Calculate the unknown concentration of an acid or base from titration data. Enter the concentration and volume of the known solution, the volume of the unknown solution, and the reaction ratio.<\/p>\n","protected":false},"author":3168,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[54],"tags":[57],"class_list":["post-66468","post","type-post","status-publish","format-standard","hentry","category-chemistry","tag-reactions"],"acf":[],"_links":{"self":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/66468","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/users\/3168"}],"replies":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/comments?post=66468"}],"version-history":[{"count":1,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/66468\/revisions"}],"predecessor-version":[{"id":66469,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/66468\/revisions\/66469"}],"wp:attachment":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/media?parent=66468"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/categories?post=66468"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/tags?post=66468"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}