{"id":66526,"date":"2026-10-06T17:43:45","date_gmt":"2026-10-06T14:43:45","guid":{"rendered":"https:\/\/wpcalc.com\/en\/?p=66526"},"modified":"2026-10-06T17:43:45","modified_gmt":"2026-10-06T14:43:45","slug":"partition-coefficient-calculator","status":"publish","type":"post","link":"https:\/\/wpcalc.com\/en\/chemistry\/partition-coefficient-calculator\/","title":{"rendered":"Partition Coefficient 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 How a Solute Divides Between Two Immiscible Liquids<\/h2><\/div><div class=\"calcdash-favorite group\">\n  <button type=\"button\" class=\"favorite\" id=\"favorite\" data-favorite-id=\"66526\" data-favorite-title=\"Partition Coefficient\" data-favorite-url=\"https:\/\/wpcalc.com\/en\/chemistry\/partition-coefficient-calculator\/\" data-favorite-excerpt=\"Enter the equilibrium concentrations of a solute in the organic and aqueous phases to get the partition coefficient P, log P, and the percentage of solute in each layer.\" aria-label=\"Add to Favorites\" data-favorite-icon=\"icon icon-biology\">\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\/partition-coefficient-calculator\/\" method=\"POST\" class=\"calculator\" id=\"calculator-66526\" data-post=\"66526\"><fieldset class=\"fieldset-input is-2\"><legend class=\"sr-only\">Input Fields<\/legend><div class=\"field has-term\" id=\"input-1\"><label for=\"field-1\">Concentration in Organic Phase<\/label><div class=\"term\">Corg<\/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_in_organic_phase\" id=\"field-1\" aria-describedby=\"calc-info-1\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" placeholder=\"e.g. 12\" min=\"0\" value=\"12\"\/><div class=\"grid grid-cols-1\"><select id=\"field-2\" name=\"unit\" aria-label=\"Unit\"><option value=\"M\">mol\/L<\/option><option value=\"mM\" selected>mmol\/L<\/option><option value=\"uM\">\u00b5mol\/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-1\">Equilibrium concentration of the solute in the non-polar (organic) layer<\/small><\/div><div class=\"field has-term\" id=\"input-2\"><label for=\"field-3\">Concentration in Aqueous Phase<\/label><div class=\"term\">Caq<\/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_in_aqueous_phase\" id=\"field-3\" aria-describedby=\"calc-info-3\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" placeholder=\"e.g. 3\" min=\"0\" value=\"3\"\/><div class=\"grid grid-cols-1\"><select id=\"field-4\" name=\"unit\" aria-label=\"Unit\"><option value=\"M\">mol\/L<\/option><option value=\"mM\" selected>mmol\/L<\/option><option value=\"uM\">\u00b5mol\/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-3\">Equilibrium concentration of the solute in the water layer<\/small><\/div><\/fieldset><div class=\"buttons\"><button type=\"submit\" data-text=\"Re-Calculate\" id=\"calculate-button\" data-post=\"66526\">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> Partition Results<\/h3><div class=\"result-box\"><div class=\"field-result\" id=\"output-1\"><span class=\"field-title\"><span>Partition Coefficient<\/span><span class=\"result-term\">P<\/span><\/span><span class=\"field-value\" id=\"result-1\"><\/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>log P<\/span><span class=\"result-term\">log P<\/span><\/span><span class=\"field-value\" id=\"result-2\"><\/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>Solute in Organic Phase at Equilibrium<\/span><\/span><span class=\"field-value\" id=\"result-3\" data-unit=\"%\"><\/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-4\"><span class=\"field-title\"><span>Solute in Aqueous Phase at Equilibrium<\/span><\/span><span class=\"field-value\" id=\"result-4\" data-unit=\"%\"><\/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 is-column\" id=\"output-5\"><span class=\"field-title\"><span>Interpretation<\/span><\/span><span class=\"field-value\" id=\"result-5\"><\/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 is-column\" id=\"output-6\"><span class=\"field-title\"><span>Calculation Details<\/span><\/span><span class=\"field-value\" id=\"result-6\"><\/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=\"66526\" 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>Partition Coefficient 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\">\\[ P = \\frac{C_{org}}{C_{aq}} \\qquad \\log P = \\log_{10} P \\]<\/div>\r\n\t<\/figure>\r\n\t<\/p>\n<p><strong>Where:<\/strong><\/p>\n<ul>\n<li>\\(P\\) \u2014 partition coefficient (dimensionless)<\/li>\n<li>\\(C_{org}\\) \u2014 equilibrium concentration of the solute in the organic phase (mol\/L)<\/li>\n<li>\\(C_{aq}\\) \u2014 equilibrium concentration of the solute in the aqueous phase (mol\/L)<\/li>\n<li>\\(\\log P\\) \u2014 base-10 logarithm of \\(P\\), the standard way of reporting lipophilicity<\/li>\n<\/ul>\n<p>The formula expresses the equilibrium distribution of a solute between two immiscible liquids: the bigger the ratio, the stronger the solute's preference for the organic (non-polar) layer over water. Because both concentrations are converted to the same unit before dividing, \\(P\\) itself has no units.<\/p>\n<p>When equal volumes of the two phases are equilibrated, the fraction of solute ending up in each layer follows directly from \\(P\\):<\/p>\n<p>\\[ f_{org} = \\frac{P}{1+P} \\qquad f_{aq} = \\frac{1}{1+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>Partition Coefficient \u2013 Calculation Example<\/h2><\/div>\r\n\r\n<\/p>\n<p><strong>Example:<\/strong> after shaking a water sample with an equal volume of an organic solvent, analysis shows the solute at 12 mmol\/L in the organic layer and 3 mmol\/L in the water layer.<\/p>\n<p>\\[ C_{org} = 12\\ \\text{mM} = 0.012\\ \\text{mol\/L}, \\quad C_{aq} = 3\\ \\text{mM} = 0.003\\ \\text{mol\/L} \\]<\/p>\n<p>\\[ P = \\frac{0.012}{0.003} = 4 \\]<\/p>\n<p>\\[ \\log P = \\log_{10} 4 \\approx 0.602 \\]<\/p>\n<p>\\[ f_{org} = \\frac{4}{1+4} = 0.80 = 80\\%, \\quad f_{aq} = 20\\% \\]<\/p>\n<p><strong>Result:<\/strong> \\(P = 4\\), \\(\\log P \\approx 0.60\\). With equal phase volumes, 80 % of the solute partitions into the organic layer and 20 % remains in water \u2014 the compound is mildly lipophilic.<\/p>\n<p>\n\r\n<\/section>\n<h2>How to Use the Calculator<\/h2>\n<ol>\n<li>Enter the equilibrium <strong>Concentration in Organic Phase<\/strong> and pick its unit (mol\/L, mmol\/L or \u00b5mol\/L) from the dropdown.<\/li>\n<li>Enter the equilibrium <strong>Concentration in Aqueous Phase<\/strong> with its unit. Both values must describe the same solute at the same temperature after the layers have equilibrated.<\/li>\n<li>Read the results: <strong>Partition Coefficient<\/strong>, <strong>log P<\/strong>, the <strong>percentage of solute in each phase<\/strong> (for equal volumes), plus an automatic interpretation and a step-by-step calculation breakdown.<\/li>\n<\/ol>\n<h2>What Is the Partition Coefficient?<\/h2>\n<p>When a solute is shaken with two immiscible liquids \u2014 typically water and an organic solvent such as octanol, ether or dichloromethane \u2014 it distributes between the two layers until equilibrium is reached. The partition coefficient \\(P\\) (also written \\(K_D\\), the distribution coefficient) is the ratio of the solute's equilibrium concentration in the organic phase to that in the aqueous phase. It is a thermodynamic property of the solute\u2013solvent pair at a given temperature: it does not depend on how much solute or solvent you use, only on their chemical identities.<\/p>\n<p>A \\(P\\) greater than 1 means the solute prefers the organic layer; a \\(P\\) less than 1 means it prefers water. Because partition coefficients of real compounds span many orders of magnitude, chemists almost always report \\(\\log P\\). A drug candidate with \\(\\log P\\approx 2\\), for instance, is a thousand times more concentrated in octanol than in water at equilibrium \u2014 a useful proxy for how easily it crosses lipid membranes. The classic reference system is 1-octanol\/water, and tabulated \\(\\log P\\) values usually refer to it unless stated otherwise.<\/p>\n<p>The percentages shown by the calculator describe a single equilibration of equal phase volumes: 80 % organic \/ 20 % aqueous in the example above. If the phase volumes differ, the mass balance changes \u2014 with organic volume \\(V_{org}\\) and aqueous volume \\(V_{aq}\\), the fraction remaining in water is \\(1\/(1 + P V_{org}\/V_{aq})\\). The same logic underlies liquid\u2013liquid extraction: a solute with a high \\(P\\) can be pulled nearly quantitatively into a small volume of organic solvent.<\/p>\n<h2>Interpreting log P Values<\/h2>\n<table>\n<thead>\n<tr>\n<th>log P range<\/th>\n<th>Typical behaviour<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>&lt; \u22123<\/td>\n<td>Very hydrophilic; essentially all solute stays in water<\/td>\n<\/tr>\n<tr>\n<td>\u22123 to 0<\/td>\n<td>Hydrophilic; favours the aqueous phase<\/td>\n<\/tr>\n<tr>\n<td>0 to 1<\/td>\n<td>Mildly lipophilic; roughly balanced<\/td>\n<\/tr>\n<tr>\n<td>1 to 3<\/td>\n<td>Moderately lipophilic; many oral drugs fall here<\/td>\n<\/tr>\n<tr>\n<td>3 to 5<\/td>\n<td>Strongly lipophilic; accumulates in fatty tissue and membranes<\/td>\n<\/tr>\n<tr>\n<td>\u2265 5<\/td>\n<td>Very lipophilic; poorly absorbed, bioaccumulation risk<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Assumptions, Limitations and Practical Tips<\/h2>\n<ul>\n<li><strong>Dilute, ideal solutions.<\/strong> The simple ratio is constant only at low concentrations; at high concentrations activity effects make the apparent \\(P\\) drift.<\/li>\n<li><strong>One chemical form only.<\/strong> \\(P\\) assumes the solute does not ionise, associate or react in either phase. For ionisable compounds measured at a fixed pH, the ratio is called the distribution coefficient \\(D\\) (log D); it depends on pH through the <a href=\"https:\/\/wpcalc.com\/en\/chemistry\/henderson-hasselbalch-calculator\/\">Henderson\u2013Hasselbalch relationship<\/a>.<\/li>\n<li><strong>Equilibrium.<\/strong> The input concentrations must be measured after thorough mixing and phase separation, at a fixed temperature \u2014 \\(P\\) changes with temperature just like any other <a href=\"https:\/\/wpcalc.com\/en\/chemistry\/equilibrium-constant-calculator\/\">equilibrium constant<\/a>.<\/li>\n<li><strong>Several small extractions beat one large one.<\/strong> Shaking the aqueous layer with \\(n\\) equal portions of fresh organic solvent leaves \\((1\/(1+P))^n\\) of the solute in water \u2014 the classic liquid\u2013liquid extraction trick.<\/li>\n<li><strong>Equal volumes assumed for the percentages.<\/strong> The reported organic\/aqueous percentages assume \\(V_{org} = V_{aq}\\); adjust manually for other volume ratios using the formula above.<\/li>\n<\/ul>\n<h2>Related Calculators<\/h2>\n<p>You may also find the <a href=\"https:\/\/wpcalc.com\/en\/chemistry\/chromatography-resolution-calculator\/\">Chromatography Resolution Calculator<\/a> and the <a href=\"https:\/\/wpcalc.com\/en\/chemistry\/thin-layer-chromatography-rf-calculator\/\">TLC R<sub>f<\/sub> Calculator<\/a> useful \u2014 both techniques separate compounds partly on the basis of the same partitioning behaviour described by \\(P\\).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Enter the equilibrium concentrations of a solute in the organic and aqueous phases to get the partition coefficient P, log P, and the percentage of solute in each layer.<\/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":[60],"class_list":["post-66526","post","type-post","status-publish","format-standard","hentry","category-chemistry","tag-biochemistry"],"acf":[],"_links":{"self":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/66526","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=66526"}],"version-history":[{"count":2,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/66526\/revisions"}],"predecessor-version":[{"id":67049,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/66526\/revisions\/67049"}],"wp:attachment":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/media?parent=66526"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/categories?post=66526"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/tags?post=66526"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}