{"id":3141,"date":"2026-05-09T12:05:01","date_gmt":"2026-05-09T10:05:01","guid":{"rendered":"https:\/\/bio-me.bio\/?page_id=3141"},"modified":"2026-05-22T22:12:33","modified_gmt":"2026-05-22T20:12:33","slug":"bmi-metabolic-rate-calculator","status":"publish","type":"page","link":"https:\/\/bio-me.bio\/?page_id=3141","title":{"rendered":"BMI + Metabolic Rate Calculator"},"content":{"rendered":"\n<div class=\"eco-tool wp-block-group\" id=\"eco-tool-bmi-bmr-5ac2d\">\n  <div class=\"eco-tool__header\">\n    <h2 class=\"eco-tool__title\">BMI + Daily Calories Calculator<\/h2>\n    <p class=\"eco-tool__lead\">\n      Calculate BMI and estimate daily calories from height, weight, age, sex, and activity.\n    <\/p>\n  <\/div>\n\n  <form class=\"eco-tool__form\" id=\"eco-bmi-form-5ac2d\" novalidate>\n    <div class=\"eco-tool__grid3\">\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-bmi-height-5ac2d\">Height<br>(cm)<\/label>\n        <input class=\"eco-tool__input\" id=\"eco-bmi-height-5ac2d\" type=\"number\" min=\"50\" step=\"0.1\" value=\"175\" inputmode=\"decimal\" \/>\n        <div class=\"eco-tool__hint\">Enter height in centimeters.<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-bmi-weight-5ac2d\">Weight<br>(kg)<\/label>\n        <input class=\"eco-tool__input\" id=\"eco-bmi-weight-5ac2d\" type=\"number\" min=\"10\" step=\"0.1\" value=\"70\" inputmode=\"decimal\" \/>\n        <div class=\"eco-tool__hint\">Enter weight in kilograms.<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-bmi-age-5ac2d\">Age<br>(years)<\/label>\n        <input class=\"eco-tool__input\" id=\"eco-bmi-age-5ac2d\" type=\"number\" min=\"1\" step=\"1\" value=\"30\" inputmode=\"numeric\" \/>\n        <div class=\"eco-tool__hint\">Used for calorie estimate.<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-bmi-sex-5ac2d\">Biological<br>sex<\/label>\n        <select class=\"eco-tool__input\" id=\"eco-bmi-sex-5ac2d\">\n          <option value=\"male\">Male<\/option>\n          <option value=\"female\">Female<\/option>\n        <\/select>\n        <div class=\"eco-tool__hint\">Used in a standard BMR formula.<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-bmi-activity-5ac2d\">Activity<br>level<\/label>\n        <select class=\"eco-tool__input\" id=\"eco-bmi-activity-5ac2d\">\n          <option value=\"1.2\">Sedentary<\/option>\n          <option value=\"1.375\">Lightly active<\/option>\n          <option value=\"1.55\" selected>Moderately active<\/option>\n          <option value=\"1.725\">Very active<\/option>\n          <option value=\"1.9\">Extra active<\/option>\n        <\/select>\n        <div class=\"eco-tool__hint\">Used for daily calorie estimate.<\/div>\n      <\/div>\n    <\/div>\n\n    <div class=\"eco-tool__actions\">\n      <button type=\"button\" class=\"wp-element-button eco-tool__btn\" id=\"eco-bmi-calc-5ac2d\">Calculate<\/button>\n      <button type=\"button\" class=\"wp-element-button eco-tool__btn eco-tool__btn--ghost\" id=\"eco-bmi-reset-5ac2d\">Reset<\/button>\n      <div class=\"eco-tool__error\" id=\"eco-bmi-error-5ac2d\" aria-live=\"polite\"><\/div>\n    <\/div>\n  <\/form>\n\n  <div class=\"eco-tool__result\" id=\"eco-bmi-result-5ac2d\" hidden>\n    <div class=\"eco-tool__cards\">\n      <div class=\"eco-tool__card\">\n        <div class=\"eco-tool__metric-label\">BMI<\/div>\n        <div class=\"eco-tool__metric-value\" id=\"eco-bmi-main-5ac2d\">\u2014<\/div>\n        <div class=\"eco-tool__metric-sub\" id=\"eco-bmi-main-sub-5ac2d\"><\/div>\n      <\/div>\n\n      <div class=\"eco-tool__card\">\n        <div class=\"eco-tool__metric-label\">Daily calorie estimate<\/div>\n        <div class=\"eco-tool__metric-value\" id=\"eco-bmi-tdee-5ac2d\">\u2014<\/div>\n        <div class=\"eco-tool__metric-sub\" id=\"eco-bmi-tdee-sub-5ac2d\"><\/div>\n      <\/div>\n    <\/div>\n\n    <p class=\"eco-tool__note\">\n      General estimate only. BMI and calorie needs can vary by body composition, medical status, and individual metabolism.\n    <\/p>\n  <\/div>\n<\/div>\n\n<style>\n.eco-tool{border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:16px}\n.eco-tool__header{margin-bottom:12px}\n.eco-tool__title{margin:0 0 8px}\n.eco-tool__lead{margin:0;opacity:.9}\n.eco-tool__form{margin-top:12px}\n.eco-tool__grid3{display:grid;grid-template-columns:1fr;gap:16px}\n@media (min-width:860px){.eco-tool__grid3{grid-template-columns:1fr 1fr 1fr}}\n.eco-tool__field{display:flex;flex-direction:column;gap:6px}\n.eco-tool__label{font-weight:600}\n.eco-tool__input{width:100%;height:44px;padding:0 12px;border:1px solid rgba(0,0,0,.20);border-radius:10px;background:#fff;box-sizing:border-box;font:inherit}\n.eco-tool select.eco-tool__input{appearance:none;-webkit-appearance:none;line-height:44px;padding-right:40px;background-image:linear-gradient(45deg,transparent 50%,rgba(0,0,0,.60) 50%),linear-gradient(135deg,rgba(0,0,0,.60) 50%,transparent 50%);background-position:calc(100% - 18px) 50%,calc(100% - 12px) 50%;background-size:6px 6px;background-repeat:no-repeat}\n.eco-tool__hint{font-size:.92em;opacity:.78;min-height:38px}\n.eco-tool__actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:16px}\n.eco-tool__btn{padding:10px 22px}\n.eco-tool__btn--ghost{background:transparent!important;border:1px solid rgba(0,0,0,.20)!important}\n.eco-tool__btn--ghost:hover,.eco-tool__btn--ghost:focus{background:rgba(0,0,0,.06)!important;border-color:rgba(0,0,0,.35)!important}\n.eco-tool__error{min-height:1.2em;font-weight:600;flex:1 1 240px}\n.eco-tool__result{margin-top:16px}\n.eco-tool__cards{display:grid;gap:10px;grid-template-columns:1fr}\n@media (min-width:860px){.eco-tool__cards{grid-template-columns:1fr 1fr}}\n.eco-tool__card{border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:12px}\n.eco-tool__metric-label{opacity:.85;font-weight:600}\n.eco-tool__metric-value{font-size:1.6em;font-weight:800;margin-top:6px;line-height:1.1}\n.eco-tool__metric-sub{opacity:.85;margin-top:6px}\n.eco-tool__note{margin:10px 0 0;opacity:.9}\n<\/style>\n\n<script>\n(function(){\n  const S = \"5ac2d\";\n  const el = (id) => document.getElementById(id + \"-\" + S);\n\n  const heightEl = el(\"eco-bmi-height\");\n  const weightEl = el(\"eco-bmi-weight\");\n  const ageEl = el(\"eco-bmi-age\");\n  const sexEl = el(\"eco-bmi-sex\");\n  const activityEl = el(\"eco-bmi-activity\");\n\n  const calcBtn = el(\"eco-bmi-calc\");\n  const resetBtn = el(\"eco-bmi-reset\");\n  const errorEl = el(\"eco-bmi-error\");\n  const resultEl = el(\"eco-bmi-result\");\n\n  const mainEl = el(\"eco-bmi-main\");\n  const mainSubEl = el(\"eco-bmi-main-sub\");\n  const tdeeEl = el(\"eco-bmi-tdee\");\n  const tdeeSubEl = el(\"eco-bmi-tdee-sub\");\n\n  function setError(msg){ errorEl.textContent = msg || \"\"; }\n  function fmt(x){ return x.toLocaleString(undefined,{minimumFractionDigits:1,maximumFractionDigits:1}); }\n\n  function bmiCategory(bmi){\n    if (bmi < 18.5) return \"Underweight\";\n    if (bmi < 25) return \"Normal\";\n    if (bmi < 30) return \"Overweight\";\n    return \"Obesity\";\n  }\n\n  function calculate(){\n    setError(\"\");\n\n    const heightCm = Number(heightEl.value);\n    const weightKg = Number(weightEl.value);\n    const age = Number(ageEl.value);\n    const sex = sexEl.value;\n    const activity = Number(activityEl.value);\n\n    if (!Number.isFinite(heightCm) || heightCm <= 0 ||\n        !Number.isFinite(weightKg) || weightKg <= 0 ||\n        !Number.isFinite(age) || age <= 0 ||\n        !Number.isFinite(activity) || activity <= 0) {\n      setError(\"Please enter valid values.\");\n      resultEl.hidden = true;\n      return;\n    }\n\n    const heightM = heightCm \/ 100;\n    const bmi = weightKg \/ (heightM * heightM);\n    const bmr = sex === \"male\"\n      ? (10 * weightKg) + (6.25 * heightCm) - (5 * age) + 5\n      : (10 * weightKg) + (6.25 * heightCm) - (5 * age) - 161;\n    const tdee = bmr * activity;\n\n    mainEl.textContent = fmt(bmi);\n    mainSubEl.textContent = bmiCategory(bmi);\n\n    tdeeEl.textContent = `${fmt(tdee)} kcal`;\n    tdeeSubEl.textContent = \"Estimated calories per day\";\n\n    resultEl.hidden = false;\n  }\n\n  function reset(){\n    setError(\"\");\n    heightEl.value = \"175\";\n    weightEl.value = \"70\";\n    ageEl.value = \"30\";\n    sexEl.value = \"male\";\n    activityEl.value = \"1.55\";\n    resultEl.hidden = true;\n  }\n\n  calcBtn.addEventListener(\"click\", calculate);\n  resetBtn.addEventListener(\"click\", reset);\n})();\n<\/script>\n\n","protected":false},"excerpt":{"rendered":"<p>BMI + Daily Calories Calculator Calculate BMI and estimate daily calories from height, weight, age, sex, and activity. Height(cm) Enter height in centimeters. Weight(kg) Enter weight in kilograms. Age(years) Used&hellip;<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":2452,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","footnotes":""},"_links":{"self":[{"href":"https:\/\/bio-me.bio\/index.php?rest_route=\/wp\/v2\/pages\/3141"}],"collection":[{"href":"https:\/\/bio-me.bio\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/bio-me.bio\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/bio-me.bio\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/bio-me.bio\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3141"}],"version-history":[{"count":2,"href":"https:\/\/bio-me.bio\/index.php?rest_route=\/wp\/v2\/pages\/3141\/revisions"}],"predecessor-version":[{"id":3274,"href":"https:\/\/bio-me.bio\/index.php?rest_route=\/wp\/v2\/pages\/3141\/revisions\/3274"}],"up":[{"embeddable":true,"href":"https:\/\/bio-me.bio\/index.php?rest_route=\/wp\/v2\/pages\/2452"}],"wp:attachment":[{"href":"https:\/\/bio-me.bio\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3141"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}