{"id":2854,"date":"2026-09-22T23:14:59","date_gmt":"2026-09-22T20:14:59","guid":{"rendered":"https:\/\/economiaportal.com\/?page_id=2854"},"modified":"2026-09-22T23:50:19","modified_gmt":"2026-09-22T20:50:19","slug":"bmi-calculator","status":"publish","type":"page","link":"https:\/\/economiaportal.com\/sr\/bmi-calculator\/","title":{"rendered":"BMI Calculator"},"content":{"rendered":"\n<!--\n  BMI CALCULATOR &mdash; v2 (design + confiabilidade + reten\u00e7\u00e3o)\n  Cole em um bloco \"Custom HTML\" no WordPress.\n-->\n<meta charset=\"UTF-8\">\n<style>:root{\n  --bg:#FAFAF8; --panel:#FFFFFF; --ink:#1C2321; --muted:#5B6560;\n  --accent:#0B6E4F; --accent-soft:#E6F2ED; --border:#E4E4DF; --error:#B3261E; --error-bg:#FCEEED;\n}\n.tool-wrap{\n  max-width:640px;margin:28px auto;font-family:-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,Helvetica,Arial,sans-serif;\n  color:var(--ink);\n}\n.tool-panel{\n  background:var(--panel);border:1px solid var(--border);border-left:4px solid 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var(--border);font-size:0.85rem;color:var(--muted);}\n.tool-more a{color:var(--accent);text-decoration:none;font-weight:600;}\n.tool-more a:hover{text-decoration:underline;}\n\n.tool-seo{margin-top:24px;padding-top:20px;border-top:1px solid var(--border);}\n.tool-seo h2{font-size:1.05rem;margin:0 0 8px;}\n.tool-seo p{font-size:0.9rem;color:var(--muted);line-height:1.7;margin:0 0 12px;}\n<\/style>\n\n<div class=\"tool-wrap\">\n  <div class=\"tool-panel\">\n    <p class=\"tool-eyebrow\">Free online tool<\/p>\n    <h1 class=\"tool-h1\">BMI Calculator<\/h1>\n    <p class=\"tool-sub\">Calculate your Body Mass Index using US or metric units.<\/p>\n\n    <div class=\"tool-unit-toggle\">\n      <label><input type=\"radio\" name=\"bmi-unit\" value=\"us\" checked> US units (lb, ft\/in)<\/label>\n      <label><input type=\"radio\" name=\"bmi-unit\" value=\"metric\"> Metric (kg, cm)<\/label>\n    <\/div>\n\n    <div id=\"bmi-fields-us\">\n      <div class=\"tool-field\">\n        <label for=\"bmi-weight-lb\">Weight (lb)<\/label>\n        <input id=\"bmi-weight-lb\" type=\"number\" placeholder=\"e.g. 160\">\n      <\/div>\n      <div class=\"tool-row\">\n        <div class=\"tool-field\">\n          <label for=\"bmi-height-ft\">Height (ft)<\/label>\n          <input id=\"bmi-height-ft\" type=\"number\" placeholder=\"5\">\n        <\/div>\n        <div class=\"tool-field\">\n          <label for=\"bmi-height-in\">Height (in)<\/label>\n          <input id=\"bmi-height-in\" type=\"number\" placeholder=\"8\">\n        <\/div>\n      <\/div>\n    <\/div>\n\n    <div id=\"bmi-fields-metric\" style=\"display:none;\">\n      <div class=\"tool-field\">\n        <label for=\"bmi-weight-kg\">Weight (kg)<\/label>\n        <input id=\"bmi-weight-kg\" type=\"number\" placeholder=\"e.g. 72\">\n      <\/div>\n      <div class=\"tool-field\">\n        <label for=\"bmi-height-cm\">Height (cm)<\/label>\n        <input id=\"bmi-height-cm\" type=\"number\" placeholder=\"e.g. 173\">\n      <\/div>\n    <\/div>\n\n    <button id=\"bmi-btn-calculate\" class=\"tool-btn\">Calculate BMI<\/button>\n    <p id=\"bmi-erro\" class=\"tool-error\"><\/p>\n\n    <div id=\"bmi-resultado\" class=\"tool-result\">\n      <p class=\"headline\">Your BMI<\/p>\n      <p class=\"value\" id=\"bmi-valor\"><\/p>\n      <div class=\"detail\"><span>Category<\/span><span id=\"bmi-categoria\"><\/span><\/div>\n    <\/div>\n\n    <div class=\"tool-explain\">\n      <h3>How this is calculated<\/h3>\n      <p>BMI = weight &divide; height<sup>2<\/sup>. We use the standard formula recommended by the\n      <a href=\"https:\/\/www.cdc.gov\/healthyweight\/assessing\/index.html\" target=\"_blank\" rel=\"noopener\">CDC<\/a>:\n      703 &times; weight (lb) &divide; height (in)\u00b2 for US units, or kg &divide; m<sup>2<\/sup> for metric.<\/p>\n    <\/div>\n\n    <div class=\"tool-faq\">\n      <details>\n        <summary>Is BMI accurate for everyone?<\/summary>\n        <p>BMI is a general screening measure. It doesn&#8217;t distinguish muscle from fat, so it can\n        overestimate body fat in athletes and underestimate it in older adults with low muscle mass.\n        It&#8217;s a starting point, not a diagnosis.<\/p>\n      <\/details>\n      <details>\n        <summary>What are the BMI categories?<\/summary>\n        <p>Underweight: below 18.5 \u00b7 Normal weight: 18.5\u201324.9 \u00b7 Overweight: 25\u201329.9 \u00b7 Obesity: 30 and above.<\/p>\n      <\/details>\n      <details>\n        <summary>Should I talk to a doctor about my result?<\/summary>\n        <p>If your BMI is outside the normal range, or you have concerns about your weight or health,\n        a healthcare provider can give you a full assessment that BMI alone can&#8217;t.<\/p>\n      <\/details>\n    <\/div>\n\n\n    <div class=\"tool-seo\">\n      <h2>Free BMI Calculator: Check Your Body Mass Index<\/h2>\n      <p>This BMI calculator helps you quickly find your Body Mass Index using either US units (pounds,\n      feet and inches) or metric units (kilograms, centimeters). BMI is one of the most common ways to\n      get a quick, general read on whether your weight falls within a typical range for your height.<\/p>\n      <p>Doctors, trainers, and insurers often reference BMI as a starting point &mdash; not a full picture\n      &mdash; of overall health. This calculator uses the same formula recommended by the CDC, so results\n      match what you&#8217;d get from a clinical BMI chart. Enter your weight and height above to calculate your\n      BMI in seconds and see which category (underweight, normal weight, overweight, or obesity) it falls\n      into.<\/p>\n    <\/div>\n\n    <p class=\"tool-more\">More free tools: <a href=\"\/age-calculator\/\">Age Calculator<\/a> \u00b7 <a href=\"\/tip-calculator\/\">Tip Calculator<\/a><\/p>\n  <\/div>\n<\/div>\n\n<script>\n(function () {\n  var radios = document.getElementsByName('bmi-unit');\n  for (var i = 0; i < radios.length; i++) {\n    radios[i].addEventListener('change', function () {\n      var isUS = document.querySelector('input[name=\"bmi-unit\"]:checked').value === 'us';\n      document.getElementById('bmi-fields-us').style.display = isUS ? 'block' : 'none';\n      document.getElementById('bmi-fields-metric').style.display = isUS ? 'none' : 'block';\n    });\n  }\n\n  document.getElementById('bmi-btn-calculate').addEventListener('click', function () {\n    var erroEl = document.getElementById('bmi-erro');\n    var resultEl = document.getElementById('bmi-resultado');\n    erroEl.style.display = 'none';\n    resultEl.style.display = 'none';\n\n    var isUS = document.querySelector('input[name=\"bmi-unit\"]:checked').value === 'us';\n    var bmi = 0;\n\n    if (isUS) {\n      var weightLb = parseFloat(document.getElementById('bmi-weight-lb').value) || 0;\n      var heightFt = parseFloat(document.getElementById('bmi-height-ft').value) || 0;\n      var heightIn = parseFloat(document.getElementById('bmi-height-in').value) || 0;\n      var totalInches = (heightFt * 12) + heightIn;\n      if (weightLb <= 0 || totalInches <= 0) {\n        erroEl.textContent = 'Please enter a valid weight and height.';\n        erroEl.style.display = 'block';\n        return;\n      }\n      bmi = (weightLb \/ (totalInches * totalInches)) * 703;\n    } else {\n      var weightKg = parseFloat(document.getElementById('bmi-weight-kg').value) || 0;\n      var heightCm = parseFloat(document.getElementById('bmi-height-cm').value) || 0;\n      if (weightKg <= 0 || heightCm <= 0) {\n        erroEl.textContent = 'Please enter a valid weight and height.';\n        erroEl.style.display = 'block';\n        return;\n      }\n      var heightM = heightCm \/ 100;\n      bmi = weightKg \/ (heightM * heightM);\n    }\n\n    var categoria = 'Normal weight';\n    if (bmi < 18.5) categoria = 'Underweight';\n    else if (bmi >= 25 && bmi < 30) categoria = 'Overweight';\n    else if (bmi >= 30) categoria = 'Obesity';\n\n    document.getElementById('bmi-valor').textContent = bmi.toFixed(1);\n    document.getElementById('bmi-categoria').textContent = categoria;\n    resultEl.style.display = 'block';\n\n    window.dataLayer = window.dataLayer || [];\n    window.dataLayer.push({ 'event': 'tool_used', 'tool_name': 'bmi_calculator', 'market': 'US' });\n  });\n})();\n<\/script>\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is BMI accurate for everyone?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"BMI is a general screening measure. 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