BMI Calculator
Sep 24, 2023
v.0
A fun and colorful single-page BMI calculator app. Calculator Health Bmi Fitness

Versions  

Bugs  
None!

Get This App On Your Website

1. Copy the code above with the iframe and link.
2. Paste the code into your website.
3. Resize the iframe to fit your website.

Javascript, HTML, CSS Code

                <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="A fun and colorful single-page BMI calculator app.">
<meta name="keywords" content="BMI, calculator, health, fitness">

<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://fonts.googleapis.com/css2?family=Pacifico&display=swap" rel="stylesheet">

<script type="text/javascript">
try {
const calculateBMI = () => {
const height = parseFloat(document.getElementById("height").value);
const weight = parseFloat(document.getElementById("weight").value);
const resultDiv = document.getElementById("result");

if (isNaN(height) || isNaN(weight)) {
resultDiv.innerHTML = '<p class="text-danger">Please enter valid numbers!</p>';
return;
}

const bmi = (weight / Math.pow(height / 100, 2)).toFixed(2);
let bmiCategory;

if (bmi < 18.5) bmiCategory = "Underweight";
else if (bmi < 24.9) bmiCategory = "Normal weight";
else if (bmi < 29.9) bmiCategory = "Overweight";
else bmiCategory = "Obesity";

resultDiv.innerHTML = `<p>Your BMI is <strong>${bmi}</strong> which is considered <strong>${bmiCategory}</strong>.</p>`;
};

document.addEventListener("DOMContentLoaded", function() {
document.getElementById("calculateBtn").addEventListener("click", calculateBMI);
});
} catch (error) {
throw error;
}
</script>

<style>
body {
font-family: 'Pacifico', cursive;
background: linear-gradient(to right, #ff9966, #ff5e62);
color: white;
}
#main-container {
margin-top: 100px;
}
</style>

<link rel="canonical" href="https://calculator.tools/app/bmi-calculator-301/">
<meta charset="utf-8">

</head>
<body>
<div id="main-container" class="container text-center">
<h1 class="mb-4">🍎 BMI Calculator 🍎</h1>
<div class="row">
<div class="col-md-6 offset-md-3">
<input id="height" class="form-control" type="number" placeholder="Height (in cm)" min="0">
<input id="weight" class="form-control mt-3" type="number" placeholder="Weight (in kg)" min="0">
<button id="calculateBtn" class="btn btn-primary btn-lg btn-block mt-3">Calculate BMI</button>
<div id="result" class="mt-4"></div>
</div>
</div>
</div>
<script type="text/javascript"> var localStoragePrefix = "ct-301"; 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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