{"id":65755,"date":"2026-09-29T18:37:47","date_gmt":"2026-09-29T15:37:47","guid":{"rendered":"https:\/\/wpcalc.com\/en\/?p=65755"},"modified":"2026-09-29T18:37:47","modified_gmt":"2026-09-29T15:37:47","slug":"a-body-shape-index-calculator","status":"publish","type":"post","link":"https:\/\/wpcalc.com\/en\/beauty\/a-body-shape-index-calculator\/","title":{"rendered":"A Body Shape Index 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\">Calculate ABSI from Your Waist, Height and Weight<\/h2><\/div><div class=\"calcdash-favorite group\">\n  <button type=\"button\" class=\"favorite\" id=\"favorite\" data-favorite-id=\"65755\" data-favorite-title=\"A Body Shape Index\" data-favorite-url=\"https:\/\/wpcalc.com\/en\/beauty\/a-body-shape-index-calculator\/\" data-favorite-excerpt=\"Calculate your A Body Shape Index (ABSI) from waist circumference, height and weight. ABSI shows how much abdominal fat you carry relative to your overall body size, complementing BMI.\" aria-label=\"Add to Favorites\" data-favorite-icon=\"icon icon-fitness\">\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\/beauty\/a-body-shape-index-calculator\/\" method=\"POST\" class=\"calculator\" id=\"calculator-65755\" data-post=\"65755\"><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\">Waist circumference<\/label><div class=\"term\">WC<\/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=\"waist_circumference\" id=\"field-1\" aria-describedby=\"calc-info-1\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"30\" max=\"200\" value=\"90\"\/><div class=\"grid grid-cols-1\"><select id=\"field-2\" name=\"unit\" aria-label=\"Unit\"><option value=\"cm\" selected>cm<\/option><option value=\"in\">in<\/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\">Measured at the navel, standing relaxed, tape parallel to the floor<\/small><\/div><div class=\"field has-term\" id=\"input-2\"><label for=\"field-3\">Height<\/label><div class=\"term\">h<\/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=\"height\" id=\"field-3\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"80\" max=\"250\" value=\"175\"\/><div class=\"grid grid-cols-1\"><select id=\"field-4\" name=\"unit\" aria-label=\"Unit\"><option value=\"cm\" selected>cm<\/option><option value=\"m\">m<\/option><option value=\"in\">in<\/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><\/div><div class=\"field has-term\" id=\"input-3\"><label for=\"field-5\">Weight<\/label><div class=\"term\">W<\/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=\"weight\" id=\"field-5\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"20\" max=\"400\" value=\"75\"\/><div class=\"grid grid-cols-1\"><select id=\"field-6\" name=\"unit\" aria-label=\"Unit\"><option value=\"kg\" selected>kg<\/option><option value=\"lb\">lb<\/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><\/div><\/fieldset><div class=\"buttons\"><button type=\"submit\" data-text=\"Re-Calculate\" id=\"calculate-button\" data-post=\"65755\">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> Your Body Shape Index Results<\/h3><div class=\"result-box\"><div class=\"field-result\" id=\"output-1\"><span class=\"field-title\"><span>A Body Shape Index<\/span><span class=\"result-term\">ABSI<\/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>Body Mass Index<\/span><span class=\"result-term\">BMI<\/span><\/span><span class=\"field-value\" id=\"result-2\" data-unit=\"kg\/m\u00b2\"><\/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-3\"><span class=\"field-title\"><span>What this means<\/span><\/span><span class=\"field-value\" id=\"result-3\"><\/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=\"65755\" 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>ABSI 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\\[ \\mathrm{ABSI} = \\frac{WC}{BMI^{2\/3} \\times h^{1\/2}} \\]\n\\[ BMI = \\frac{W}{h^{2}} \\]<\/div>\r\n\t<\/figure>\r\n\t<\/p>\n<p><strong>Where:<\/strong><\/p>\n<ul>\n<li>\\(WC\\) \u2014 waist circumference in metres, measured at the navel<\/li>\n<li>\\(h\\) \u2014 height in metres<\/li>\n<li>\\(W\\) \u2014 weight in kilograms<\/li>\n<li>\\(BMI\\) \u2014 body mass index in kg\/m\u00b2<\/li>\n<\/ul>\n<p>The formula, proposed by Krakauer and Krakauer in 2012, expresses waist circumference relative to what would be expected for a person of your height and weight. Because height and weight are divided out, ABSI isolates the one thing BMI cannot see: where on the body the mass is concentrated.<\/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>ABSI \u2013 Calculation Example<\/h2><\/div>\r\n\r\n<p>{example}<\/p>\n<p><strong>Example:<\/strong> a person with a waist circumference of 90 cm, a height of 175 cm and a weight of 75 kg.<\/p>\n<p>\\[ BMI = \\frac{75}{1.75^{2}} = 24.5 \\,\\mathrm{kg\/m^2} \\]<\/p>\n<p>\\[ \\mathrm{ABSI} = \\frac{0.90}{24.5^{2\/3} \\times 1.75^{1\/2}} = \\frac{0.90}{8.43 \\times 1.3229} = 0.0807 \\]<\/p>\n<p><strong>Result:<\/strong> ABSI = 0.0807, with a BMI of 24.5 kg\/m\u00b2. This ABSI is about average for adults, meaning the waist is proportionate to height and weight.<\/p>\n<p>{\/example}<\/p>\n\r\n<\/section>\n<h2>How to Use the Calculator<\/h2>\n<ol>\n<li>Measure your waist circumference at the navel while standing relaxed, with the tape parallel to the floor, and enter the value in the <strong>Waist circumference<\/strong> field (default: 90 cm).<\/li>\n<li>Choose the matching unit (cm or in) from the dropdown next to the waist field.<\/li>\n<li>Enter your height in the <strong>Height<\/strong> field and select cm, m or in.<\/li>\n<li>Enter your weight in the <strong>Weight<\/strong> field and select kg or lb.<\/li>\n<li>Read your results: the <strong>A Body Shape Index<\/strong> value, your <strong>Body Mass Index<\/strong> in kg\/m\u00b2, and the interpretation of what both numbers mean together.<\/li>\n<\/ol>\n<h2>What Is ABSI and Why Does It Matter?<\/h2>\n<p>A Body Shape Index (ABSI) is a measure of body shape developed to address a well-known weakness of BMI. BMI only compares total weight to height, so it cannot distinguish a muscular person from someone carrying the same weight as visceral fat around the abdomen. Two people with identical height, weight and BMI can have very different health risks depending on where their mass is distributed.<\/p>\n<p>ABSI solves this by relating waist circumference to height and weight simultaneously. It is constructed so that it does not simply rise with body size: a larger waist than expected for a given height and weight pushes ABSI up, while a slim waist for the same frame pushes it down. In this way ABSI behaves like a <em>shape<\/em> indicator rather than a <em>size<\/em> indicator, and it is largely independent of BMI.<\/p>\n<p>In the original research and subsequent studies, high ABSI values were associated with increased mortality risk \u2014 even among people whose BMI fell in the normal range. This makes ABSI a useful complementary check: if your BMI looks fine but your ABSI is high, the excess fat may be concentrated around the waist, a pattern linked to metabolic and cardiovascular problems.<\/p>\n<p>For most adults, ABSI values cluster roughly between 0.075 and 0.081. Values below about 0.075 suggest a relatively small waist for your frame (favourable), while values above roughly 0.087 indicate a waist disproportionately large for your height and weight. Keep in mind that these are population-level tendencies, not personal diagnoses.<\/p>\n<h2>Measuring Your Waist Correctly<\/h2>\n<p>Because waist circumference is the only input that reflects body shape, measurement accuracy matters more for ABSI than for BMI:<\/p>\n<ul>\n<li>Stand relaxed, feet together, and breathe out normally before reading the tape.<\/li>\n<li>Place the tape horizontally at the level of the navel (some protocols use the midpoint between the lowest rib and the top of the hip bone \u2014 be consistent between measurements).<\/li>\n<li>Keep the tape snug but not compressing the skin, and take the measurement two or three times, using the average.<\/li>\n<\/ul>\n<h2>Assumptions and Limitations<\/h2>\n<p>The calculator converts all inputs to metric units internally, so you can enter cm, inches, metres, kilograms or pounds without worrying about conversions. Results assume the standard Krakauer and Krakauer formula, which was derived and validated on adult populations.<\/p>\n<p>A few things to keep in mind when interpreting your result:<\/p>\n<ul>\n<li><strong>ABSI is designed for adults.<\/strong> Its reference ranges do not apply to children, teenagers, or pregnant women.<\/li>\n<li><strong>Population averages vary.<\/strong> Typical ABSI values differ somewhat by age, sex and ethnicity, so the interpretation bands used here are broad guides rather than precise thresholds.<\/li>\n<li><strong>One measurement is a snapshot.<\/strong> Tracking how your ABSI changes over time \u2014 for example while losing weight or training \u2014 is more informative than a single number.<\/li>\n<li><strong>ABSI does not replace medical assessment.<\/strong> A high value is a signal to look deeper, not a diagnosis. Consult a healthcare professional if your result concerns you.<\/li>\n<\/ul>\n<p>To build a fuller picture of your body composition and health, you can pair ABSI with the <a href=\"https:\/\/wpcalc.com\/en\/beauty\/waist-to-hip-ratio-calculator\/\">Waist to Hip Ratio Calculator<\/a>, which assesses fat distribution from another angle, or the <a href=\"https:\/\/wpcalc.com\/en\/beauty\/shoulder-to-waist-ratio-calculator\/\">Shoulder to Waist Ratio Calculator<\/a>. If you are planning changes to your diet, our <a href=\"https:\/\/wpcalc.com\/en\/beauty\/protein-intake-calculator\/\">Daily Protein Intake Calculator<\/a> and <a href=\"https:\/\/wpcalc.com\/en\/beauty\/katch-mcardle-bmr\/\">Katch-McArdle BMR Calculator<\/a> can help you estimate your energy and protein needs.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Calculate your A Body Shape Index (ABSI) from waist circumference, height and weight. ABSI shows how much abdominal fat you carry relative to your overall body size, complementing BMI.<\/p>\n","protected":false},"author":3168,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[2],"tags":[38],"class_list":["post-65755","post","type-post","status-publish","format-standard","hentry","category-beauty","tag-fitness"],"acf":[],"_links":{"self":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/65755","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=65755"}],"version-history":[{"count":1,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/65755\/revisions"}],"predecessor-version":[{"id":65774,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/posts\/65755\/revisions\/65774"}],"wp:attachment":[{"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/media?parent=65755"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/categories?post=65755"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpcalc.com\/en\/wp-json\/wp\/v2\/tags?post=65755"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}