{"id":330,"date":"2026-10-13T12:34:21","date_gmt":"2026-10-13T12:34:21","guid":{"rendered":"https:\/\/lapobesity.com\/?page_id=330"},"modified":"2026-10-13T12:34:21","modified_gmt":"2026-10-13T12:34:21","slug":"bmr-calculator","status":"publish","type":"page","link":"https:\/\/lapobesity.com\/?page_id=330","title":{"rendered":"BMR Calculator"},"content":{"rendered":"\n<div class=\"lapo-tool\" id=\"lapo-bmr-1\" data-lapo-tool=\"bmr\">\n\t<div class=\"lapo-tool__main\">\n\t\t<form class=\"lapo-card lapo-form\" novalidate aria-label=\"BMR Calculator\">\n\t\t\t<div class=\"lapo-prefill\" hidden role=\"status\"><\/div>\n\t\t\t<div class=\"lapo-fields\">\n\t\t\t\t<div class=\"lapo-field lapo-field--half\" data-field=\"age\" data-type=\"number\" data-required=\"1\" data-label=\"Age\" data-profile=\"age\" data-min=\"18\" data-max=\"100\" data-integer=\"1\"><label class=\"lapo-label\" for=\"lapo-bmr-1-age\">Age<\/label><div class=\"lapo-input-group\"><input type=\"text\" class=\"lapo-input\" id=\"lapo-bmr-1-age\" data-part=\"value\" inputmode=\"numeric\" autocomplete=\"off\" spellcheck=\"false\"><span class=\"lapo-suffix lapo-suffix--box\">years<\/span><\/div><p class=\"lapo-field__error\" id=\"lapo-bmr-1-age-err\" hidden><\/p><\/div><fieldset class=\"lapo-field lapo-field--half\" data-field=\"sex\" data-type=\"radio\" data-required=\"1\" data-label=\"Sex\" data-profile=\"sex\"><legend class=\"lapo-label\">Sex<\/legend><div class=\"lapo-segmented\"><input type=\"radio\" class=\"lapo-segmented__input\" id=\"lapo-bmr-1-sex-female\" name=\"lapo-bmr-1-sex\" value=\"female\"><label class=\"lapo-segmented__label\" for=\"lapo-bmr-1-sex-female\">Female<\/label><input type=\"radio\" class=\"lapo-segmented__input\" id=\"lapo-bmr-1-sex-male\" name=\"lapo-bmr-1-sex\" value=\"male\"><label class=\"lapo-segmented__label\" for=\"lapo-bmr-1-sex-male\">Male<\/label><\/div><p class=\"lapo-help\" id=\"lapo-bmr-1-sex-help\">Physiological sex, which the equation requires.<\/p><p class=\"lapo-field__error\" id=\"lapo-bmr-1-sex-err\" hidden><\/p><\/fieldset><div class=\"lapo-field lapo-field--half\" data-field=\"weight\" data-type=\"weight\" data-required=\"1\" data-label=\"Weight\" data-profile=\"weight_kg\" data-min=\"30\" data-max=\"350\"><label class=\"lapo-label\" for=\"lapo-bmr-1-weight\">Weight<\/label><div class=\"lapo-input-group\"><input type=\"text\" class=\"lapo-input\" id=\"lapo-bmr-1-weight\" data-part=\"value\" inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\"><select class=\"lapo-unit\" data-part=\"unit\" aria-label=\"Weight unit\"><option value=\"kg\">kg<\/option><option value=\"lb\">lb<\/option><\/select><\/div><p class=\"lapo-field__error\" id=\"lapo-bmr-1-weight-err\" hidden><\/p><\/div><div class=\"lapo-field lapo-field--half\" data-field=\"height\" data-type=\"height\" data-required=\"1\" data-label=\"Height\" data-profile=\"height_cm\" data-min=\"120\" data-max=\"250\"><label class=\"lapo-label\" for=\"lapo-bmr-1-height\">Height<\/label><div class=\"lapo-input-group\"><span class=\"lapo-unit-part\" data-unit-part=\"single\"><input type=\"text\" class=\"lapo-input\" id=\"lapo-bmr-1-height\" data-part=\"value\" inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\"><\/span><span class=\"lapo-unit-part lapo-ftin\" data-unit-part=\"ft_in\" hidden><input type=\"text\" class=\"lapo-input\" id=\"lapo-bmr-1-height-ft\" data-part=\"ft\" inputmode=\"numeric\" autocomplete=\"off\" spellcheck=\"false\" aria-label=\"Feet\"><span class=\"lapo-suffix\" aria-hidden=\"true\">ft<\/span><input type=\"text\" class=\"lapo-input\" id=\"lapo-bmr-1-height-in\" data-part=\"in\" inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" aria-label=\"Inches\"><span class=\"lapo-suffix\" aria-hidden=\"true\">in<\/span><\/span><select class=\"lapo-unit\" data-part=\"unit\" aria-label=\"Height unit\"><option value=\"cm\">cm<\/option><option value=\"m\">m<\/option><option value=\"ft_in\">ft + in<\/option><option value=\"in\">in<\/option><\/select><\/div><p class=\"lapo-field__error\" id=\"lapo-bmr-1-height-err\" hidden><\/p><\/div>\t\t\t<\/div>\n\t\t\t<div class=\"lapo-form__summary lapo-error\" role=\"alert\" hidden><\/div>\n\t\t\t<div class=\"lapo-actions\">\n\t\t\t\t<button type=\"submit\" class=\"lapo-btn lapo-btn--primary\">Calculate BMR<\/button>\n\t\t\t\t<button type=\"reset\" class=\"lapo-btn lapo-btn--ghost\">Reset<\/button>\n\t\t\t<\/div>\n\t\t\t<noscript><p class=\"lapo-notice\">This calculator needs JavaScript. Please enable it in your browser to see your result.<\/p><\/noscript>\n\t\t<\/form>\n\n\t\t<section class=\"lapo-card lapo-result\" aria-labelledby=\"lapo-bmr-1-result-title\" tabindex=\"-1\">\n\t\t\t<h2 class=\"lapo-result__title\" id=\"lapo-bmr-1-result-title\">Your result<\/h2>\n\t\t\t<div class=\"lapo-result__body\" aria-live=\"polite\" aria-atomic=\"true\">\n\t\t\t\t<p class=\"lapo-result__empty\">Enter your details and select the button to see your result.<\/p>\n\t\t\t<\/div>\n\t\t<\/section>\n\t<\/div>\n\n\t<div class=\"lapo-tool__info\">\n\t\t\t\t<section class=\"lapo-section lapo-method\">\n\t\t\t<h2>How it is calculated<\/h2>\n\t\t\t<p>Basal metabolic rate (BMR) is estimated with the Mifflin-St Jeor equation, the predictive equation found most accurate for healthy adults with and without obesity in the systematic review by Frankenfield et al. (2005):<\/p><p class=\"lapo-formula\"><code>Men: BMR = 10 \u00d7 weight (kg) + 6.25 \u00d7 height (cm) \u2212 5 \u00d7 age (years) + 5<\/code><br><code>Women: BMR = 10 \u00d7 weight (kg) + 6.25 \u00d7 height (cm) \u2212 5 \u00d7 age (years) \u2212 161<\/code><\/p><p>For comparison, the result also shows the Harris-Benedict equation as revised by Roza and Shizgal (1984):<\/p><p class=\"lapo-formula\"><code>Men: 88.362 + 13.397 \u00d7 kg + 4.799 \u00d7 cm \u2212 5.677 \u00d7 age<\/code><br><code>Women: 447.593 + 9.247 \u00d7 kg + 3.098 \u00d7 cm \u2212 4.330 \u00d7 age<\/code><\/p><h3>BMR and TDEE<\/h3><p>BMR is the energy needed to keep the body running at complete rest. Total daily energy expenditure (TDEE) adds everything else: digesting food, daily movement and exercise. TDEE is therefore always higher than BMR, and it is TDEE \u2014 not BMR \u2014 that serves as the starting point for a calorie target.<\/p>\t\t<\/section>\n\t\t\n\t\t\t\t<section class=\"lapo-section lapo-limits\">\n\t\t\t<h2>Limitations<\/h2>\n\t\t\t<ul>\n\t\t\t\t\t\t\t\t<li>Predictive equations estimate an average. In the systematic review by Frankenfield et al., the Mifflin-St Jeor equation came within 10% of measured resting energy expenditure for more people than any other equation tested, but not for everyone: for some individuals the error is larger, in either direction.<\/li>\n\t\t\t\t\t\t\t\t<li>The equations do not account for body composition. People with a lot of muscle tend to have a higher BMR than predicted.<\/li>\n\t\t\t\t\t\t\t\t<li>They were developed in healthy adults. They are not valid for children, pregnancy, breastfeeding, acute illness, thyroid disorders or other conditions that change metabolism.<\/li>\n\t\t\t\t\t\t\t\t<li>Only indirect calorimetry measures resting energy expenditure; this calculator does not replace it.<\/li>\n\t\t\t\t\t\t\t<\/ul>\n\t\t<\/section>\n\t\t\n\t\t<aside class=\"lapo-disclaimer\" aria-label=\"Health notice\">\n\t\t\t<svg class=\"lapo-icon\" aria-hidden=\"true\" focusable=\"false\" viewBox=\"0 0 24 24\" width=\"20\" height=\"20\"><path d=\"M12 2 1 21h22L12 2Zm0 6 .01 0M12 9v5m0 3h.01\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/><\/svg>\n\t\t\t<p>This calculator gives an estimate for general information only. It is not a diagnosis and does not replace advice from a doctor or registered dietitian.<\/p>\n\t\t<\/aside>\n\n\t\t\t\t<section class=\"lapo-section lapo-sources\">\n\t\t\t<h2>Sources<\/h2>\n\t\t\t<ol>\n\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\tMifflin MD, St Jeor ST, Hill LA, Scott BJ, Daugherty SA, Koh YO. A new predictive equation for resting energy expenditure in healthy individuals. Am J Clin Nutr. 1990;51(2):241\u2013247.\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/doi.org\/10.1093\/ajcn\/51.2.241\" rel=\"noopener\" target=\"_blank\">Read the source<span class=\"screen-reader-text\"> (opens in a new tab)<\/span><\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\tRoza AM, Shizgal HM. The Harris Benedict equation reevaluated: resting energy requirements and the body cell mass. Am J Clin Nutr. 1984;40(1):168\u2013182.\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/doi.org\/10.1093\/ajcn\/40.1.168\" rel=\"noopener\" target=\"_blank\">Read the source<span class=\"screen-reader-text\"> (opens in a new tab)<\/span><\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\tFrankenfield D, Roth-Yousey L, Compher C. Comparison of predictive equations for resting metabolic rate in healthy nonobese and obese adults: a systematic review. J Am Diet Assoc. 2005;105(5):775\u2013789.\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/doi.org\/10.1016\/j.jada.2005.02.005\" rel=\"noopener\" target=\"_blank\">Read the source<span class=\"screen-reader-text\"> (opens in a new tab)<\/span><\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t<\/ol>\n\t\t<\/section>\n\t\t\n\t\t<nav class=\"lapo-section lapo-related\" aria-label=\"Related calculators\"><h2>Related calculators<\/h2><ul><li><a class=\"lapo-related__link\" href=\"https:\/\/lapobesity.com\/?page_id=326\"><span class=\"lapo-related__title\">TDEE Calculator<\/span><span class=\"lapo-related__desc\">Estimate the calories you burn in a day, including activity: your maintenance calories.<\/span><\/a><\/li><li><a class=\"lapo-related__link\" href=\"https:\/\/lapobesity.com\/?page_id=328\"><span class=\"lapo-related__title\">Daily Calorie Calculator<\/span><span class=\"lapo-related__desc\">A daily calorie target to maintain, lose or gain weight, with built-in safety limits.<\/span><\/a><\/li><li><a class=\"lapo-related__link\" href=\"https:\/\/lapobesity.com\/?page_id=66\"><span class=\"lapo-related__title\">BMI Calculator<\/span><span class=\"lapo-related__desc\">Body mass index from your weight and height, with the adult WHO category.<\/span><\/a><\/li><\/ul><\/nav>\t<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"class_list":["post-330","page","type-page","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - 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