BMI Calculator
Calculate your BMI using this simple tool
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Calculate your BMI using this simple tool
<html>
<head>
<script type="text/javascript"> window.addEventListener('error', function(event) { var message = JSON.parse(JSON.stringify(event.message)); var source = event.filename; var lineno = event.lineno; var colno = event.colno; var error = event.error; window.parent.postMessage({ type: 'iframeError', details: { message: message, source: source, lineno: lineno, colno: colno, error: error ? error.stack : '' } }, '*'); }); window.addEventListener('unhandledrejection', function(event) { window.parent.postMessage({ type: 'iframePromiseRejection', details: { reason: event.reason } }, '*'); }); </script>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width,initial-scale=1">
<title>BMI Calculator</title>
<meta name="description" content="Calculate your BMI using this simple tool">
<meta name="keywords" content="BMI, Body Mass Index, Health, Weight, Height">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet"
integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
<link href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet">
<script type="text/javascript">
try {
// App Javascript Goes Here. Place your entire script content inside the try block for error handling.
// This will run when the DOM is ready.
document.addEventListener("DOMContentLoaded", function() {
// Initialize user interface elements
const unitOfMeasurement = $("#unit-of-measurement");
const heightInput = $("#height-input");
const weightInput = $("#weight-input");
const calculateButton = $("#calculate-button");
const resultContainer = $("#result-container");
// Set default unit of measurement to METRIC
let selectedUnitOfMeasurement = "METRIC";
// Event listener for unit of measurement selection
unitOfMeasurement.on("change", function() {
selectedUnitOfMeasurement = unitOfMeasurement.val();
// Toggle visibility of height input based on selected unit of measurement
if (selectedUnitOfMeasurement === "METRIC") {
$("#height-metric").show();
$("#height-imperial").hide();
} else {
$("#height-metric").hide();
$("#height-imperial").show();
}
});
// Event listener for calculate button click
calculateButton.on("click", function() {
const height = selectedUnitOfMeasurement === "METRIC" ? parseFloat(heightInput.val()) : calculateImperialHeight();
const weight = parseFloat(weightInput.val());
// Input validation
if (isNaN(height) || isNaN(weight)) {
alert("Please enter valid height and weight values.");
return;
}
// Validate height and weight ranges
if (selectedUnitOfMeasurement === "METRIC") {
if (height < 140 || height > 210 || weight < 40 || weight > 200) {
alert("Please enter height between 140 cm and 210 cm, and weight between 40 kg and 200 kg.");
return;
}
} else {
if (height < 55 || height > 83 || weight < 88 || weight > 440) {
alert("Please enter height between 4'7\" and 6'11\", and weight between 88 lbs and 440 lbs.");
return;
}
}
// Calculate BMI
const bmi = selectedUnitOfMeasurement === "METRIC" ? calculateMetricBMI(height, weight) : calculateImperialBMI(height, weight);
// Display results
displayResults(bmi);
});
// Function to calculate BMI for METRIC unit
function calculateMetricBMI(height, weight) {
const heightInMeters = height / 100;
return weight / (heightInMeters ** 2);
}
// Function to calculate BMI for IMPERIAL unit
function calculateImperialBMI(height, weight) {
const heightInInches = calculateImperialHeight();
return (weight / (heightInInches ** 2)) * 703;
}
// Function to calculate height in inches for IMPERIAL unit
function calculateImperialHeight() {
const feet = parseFloat($("#feet-input").val());
const inches = parseFloat($("#inches-input").val());
return (feet * 12) + inches;
}
// Function to display BMI results
function displayResults(bmi) {
let interpretation;
if (bmi < 18.5) {
interpretation = "Underweight";
} else if (bmi >= 18.5 && bmi < 25) {
interpretation = "Normal weight";
} else if (bmi >= 25 && bmi < 30) {
interpretation = "Overweight";
} else {
interpretation = "Obese";
}
resultContainer.html(`Your BMI is: <strong>${bmi.toFixed(2)}</strong><br>Interpretation: <strong>${interpretation}</strong>`);
}
});
} catch (error) {
// This will throw the error to the parent window.
throw error;
}
</script>
<style>
body {
font-family: 'Roboto', sans-serif;
background-color: #f5f5f5;
}
h1 {
color: #333333;
margin-top: 20px;
margin-bottom: 30px;
font-size: 28px;
font-weight: 500;
text-align: center;
}
.container {
max-width: 500px;
margin: 0 auto;
padding: 30px;
background-color: #ffffff;
border-radius: 10px;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}
.form-group {
margin-bottom: 20px;
}
.form-label {
font-weight: 500;
}
.form-input {
width: 100%;
padding: 10px;
border-radius: 5px;
border: 1px solid #cccccc;
}
.button-container {
display: flex;
justify-content: center;
margin-top: 30px;
}
.button {
padding: 10px 20px;
border-radius: 5px;
background-color: #007bff;
color: #ffffff;
font-size: 16px;
font-weight: 500;
cursor: pointer;
}
.button:hover {
background-color: #0056b3;
}
#result-container {
margin-top: 30px;
text-align: center;
}
</style>
<link rel="canonical" href="https://calculator.tools/prompt/6119/">
<meta charset="utf-8">
</head>
<body>
<div id="main-container" class="container">
<h1>BMI Calculator</h1>
<div class="form-group">
<label class="form-label">Unit of Measurement:</label>
<select id="unit-of-measurement" class="form-input">
<option value="METRIC">Metric</option>
<option value="IMPERIAL">Imperial</option>
</select>
</div>
<div id="height-metric" class="form-group">
<label class="form-label">Height (cm):</label>
<input id="height-input" class="form-input" type="number" min="140" max="210" step="1">
</div>
<div id="height-imperial" class="form-group" style="display: none;">
<label class="form-label">Height (ft):</label>
<input id="feet-input" class="form-input" type="number" min="4" max="6" step="1">
<label class="form-label">Height (in):</label>
<input id="inches-input" class="form-input" type="number" min="0" max="11" step="1">
</div>
<div class="form-group">
<label class="form-label">Weight:</label>
<input id="weight-input" class="form-input" type="number" min="40" max="200" step="1">
</div>
<div class="button-container">
<button id="calculate-button" class="button">Calculate</button>
</div>
<div id="result-container"></div>
</div>
<script type="text/javascript"> var localStoragePrefix = "ct-{{ cachebreaker }}"; var lastSave = 0; function saveLocal(data) { if (Date.now() - lastSave < 1000) { return; } let cookie = localStoragePrefix + "=" + JSON.stringify(data) + "; path=" + window.location.pathname + "'; SameSite=Strict"; cookie += "; expires=" + new Date(Date.now() + 1000 * 60 * 60 * 24 * 365 * 1000).toUTCString(); document.cookie = cookie; lastSave = Date.now(); } function loadLocal() { var cookiePrefix = localStoragePrefix + "="; var cookieStart = document.cookie.indexOf(cookiePrefix); if (cookieStart > -1) { let cookieEnd = document.cookie.indexOf(";", cookieStart); if (cookieEnd == -1) { cookieEnd = document.cookie.length; } var cookieData = document.cookie.substring(cookieStart + cookiePrefix.length, cookieEnd); return JSON.parse(cookieData); } } </script>
<script type="text/javascript"> window.addEventListener('load', function() { var observer = new MutationObserver(function() { window.parent.postMessage({height: document.documentElement.scrollHeight || document.body.scrollHeight},"*"); }); observer.observe(document.body, {attributes: true, childList: true, subtree: true}); window.parent.postMessage({height: document.documentElement.scrollHeight || document.body.scrollHeight},"*"); }); </script>
</body>
</html>
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