{"id":336,"date":"2026-10-13T12:36:03","date_gmt":"2026-10-13T12:36:03","guid":{"rendered":"https:\/\/lapobesity.com\/?page_id=336"},"modified":"2026-10-13T12:36:04","modified_gmt":"2026-10-13T12:36:04","slug":"calorie-deficit-calculator","status":"publish","type":"page","link":"https:\/\/lapobesity.com\/?page_id=336","title":{"rendered":"Calorie Deficit Calculator"},"content":{"rendered":"\n<div class=\"lapo-tool\" id=\"lapo-deficit-1\" data-lapo-tool=\"deficit\">\n\t<div class=\"lapo-tool__main\">\n\t\t<form class=\"lapo-card lapo-form\" novalidate aria-label=\"Calorie Deficit 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=\"tdee\" data-type=\"number\" data-required=\"1\" data-label=\"Maintenance calories (TDEE)\" data-profile=\"tdee\" data-min=\"1000\" data-max=\"6000\" data-integer=\"1\"><label class=\"lapo-label\" for=\"lapo-deficit-1-tdee\">Maintenance calories (TDEE)<\/label><div class=\"lapo-input-group\"><input type=\"text\" class=\"lapo-input\" id=\"lapo-deficit-1-tdee\" data-part=\"value\" inputmode=\"numeric\" autocomplete=\"off\" spellcheck=\"false\" aria-describedby=\"lapo-deficit-1-tdee-help\"><span class=\"lapo-suffix lapo-suffix--box\">kcal\/day<\/span><\/div><p class=\"lapo-help\" id=\"lapo-deficit-1-tdee-help\">Use the TDEE Calculator if you do not know it.<\/p><p class=\"lapo-field__error\" id=\"lapo-deficit-1-tdee-err\" hidden><\/p><\/div><div class=\"lapo-field lapo-field--half\" data-field=\"target\" data-type=\"number\" data-required=\"1\" data-label=\"Planned daily intake\" data-profile=\"target_kcal\" data-min=\"500\" data-max=\"6000\" data-integer=\"1\"><label class=\"lapo-label\" for=\"lapo-deficit-1-target\">Planned daily intake<\/label><div class=\"lapo-input-group\"><input type=\"text\" class=\"lapo-input\" id=\"lapo-deficit-1-target\" data-part=\"value\" inputmode=\"numeric\" autocomplete=\"off\" spellcheck=\"false\"><span class=\"lapo-suffix lapo-suffix--box\">kcal\/day<\/span><\/div><p class=\"lapo-field__error\" id=\"lapo-deficit-1-target-err\" hidden><\/p><\/div><fieldset class=\"lapo-field lapo-field--half\" data-field=\"sex\" data-type=\"radio\" data-required=\"0\" data-label=\"Sex\" data-profile=\"sex\"><legend class=\"lapo-label\">Sex <span class=\"lapo-optional\">(optional)<\/span><\/legend><div class=\"lapo-segmented\"><input type=\"radio\" class=\"lapo-segmented__input\" id=\"lapo-deficit-1-sex-female\" name=\"lapo-deficit-1-sex\" value=\"female\"><label class=\"lapo-segmented__label\" for=\"lapo-deficit-1-sex-female\">Female<\/label><input type=\"radio\" class=\"lapo-segmented__input\" id=\"lapo-deficit-1-sex-male\" name=\"lapo-deficit-1-sex\" value=\"male\"><label class=\"lapo-segmented__label\" for=\"lapo-deficit-1-sex-male\">Male<\/label><\/div><p class=\"lapo-help\" id=\"lapo-deficit-1-sex-help\">Used only to check the minimum intake.<\/p><p class=\"lapo-field__error\" id=\"lapo-deficit-1-sex-err\" hidden><\/p><\/fieldset>\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 deficit<\/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-deficit-1-result-title\" tabindex=\"-1\">\n\t\t\t<h2 class=\"lapo-result__title\" id=\"lapo-deficit-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 class=\"lapo-formula\"><code>daily deficit = maintenance calories \u2212 planned intake<\/code><br><code>weekly deficit = daily deficit \u00d7 7<\/code><\/p><p>The result also converts the weekly deficit with the traditional rule of about 7,700 kcal per kilogram of body weight (3,500 kcal per pound). This figure is shown as a theoretical first-week equivalent only. Mathematical models of human metabolism show that real weight loss is slower than this rule predicts and slows further over time, because energy expenditure falls as weight falls.<\/p><h3>Safety checks<\/h3><ul><li>Planned intake below 1,200 kcal\/day (women, or sex not given) or 1,500 kcal\/day (men).<\/li><li>A deficit of more than 1,000 kcal\/day.<\/li><li>A deficit larger than 25% of maintenance calories.<\/li><\/ul><p>Any of these triggers a warning recommending professional supervision. The 2013 AHA\/ACC\/TOS guideline uses a deficit of 500\u2013750 kcal\/day for adults losing weight.<\/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>The deficit is only as accurate as the maintenance estimate and the intake you record. Both are uncertain.<\/li>\n\t\t\t\t\t\t\t\t<li>Early weight change includes water and glycogen, so the scale can move faster or slower than the energy gap suggests in the first weeks.<\/li>\n\t\t\t\t\t\t\t\t<li>The kilogram equivalent is not a prediction of your weight loss.<\/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 does not predict how much weight you will lose. Large or prolonged calorie deficits should be supervised by a health professional, especially if you have a medical condition or take medication.<\/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\tHall KD, Sacks G, Chandramohan D, et al. Quantification of the effect of energy imbalance on bodyweight. Lancet. 2011;378(9793):826\u2013837.\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/doi.org\/10.1016\/S0140-6736(11)60812-X\" 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\tJensen MD, Ryan DH, Apovian CM, et al. 2013 AHA\/ACC\/TOS Guideline for the Management of Overweight and Obesity in Adults. Circulation. 2014;129(25 Suppl 2):S102\u2013S138.\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/doi.org\/10.1161\/01.cir.0000437739.71477.ee\" 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=332\"><span class=\"lapo-related__title\">Macro Calculator<\/span><span class=\"lapo-related__desc\">Split a daily calorie target into grams of protein, carbohydrate and fat.<\/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-336","page","type-page","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - 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