BMI Calculator — Body Mass Index
Calculate your Body Mass Index (BMI) from height and weight. See your BMI category (underweight, normal, overweight, obese) and healthy weight range for your height.
BMI Calculator
Body Mass Index
How to use this tool
1. Enter your input. Use the form above — all processing happens in your browser, no data is sent to any server.
2. View the result. The output appears instantly below the input. Copy any value with one click.
3. Explore related tools. See the related tools section below for adjacent calculators and converters.
4. Bookmark this page. This tool runs entirely client-side, so it works offline once loaded. Add it to your bookmarks for quick access.
Frequently Asked Questions
Everything you need to know about this currency pair
BMI is a number calculated from your height and weight that estimates body fat. The formula is BMI = weight (kg) / height² (m²). A BMI between 18.5 and 24.9 is considered 'normal weight' for adults. BMI is a screening tool, not a diagnostic — it doesn't directly measure body fat or health.