BMI Calculator
Enter your height and weight in metric or imperial units and this calculator shows your BMI, the matching weight category, and a healthy weight range for your height. It runs entirely in your browser — free, instant, and no sign-up.
Your BMI
24.2
Healthy weight
Healthy weight for this height: 53.5 kg – 72 kg
Frequently asked questions
Divide your weight in kilograms by your height in metres squared (BMI = kg ÷ m²). For pounds and inches, multiply by 703: BMI = 703 × lb ÷ in². Enter your figures above and the calculator does it instantly.
For adults, the World Health Organization classes a BMI below 18.5 as underweight, 18.5–24.9 as a healthy weight, 25–29.9 as overweight, and 30 or above as obese.
BMI is a useful general estimate, but it doesn't separate muscle from fat or account for age, sex, and body composition — so athletes and others can read high while being healthy. Treat it as a guide, not a diagnosis, and check with a doctor for a fuller picture.
Yes — it's free with no sign-up, and the height and weight you enter never leave your browser.
More free tools
Percentage Calculator
Find a percentage of a number, or what % one number is of another.
Try toolDiscount Calculator
See the sale price and how much you save on any discount.
Try toolTip Calculator
Work out the tip, total, and per-person amount on any bill.
Try toolLoan Calculator
Estimate the monthly payment, total interest, and cost of a loan.
Try toolAge Calculator
Find your exact age in years, months, and days from a birth date.
Try toolUnit Converter
Convert length, weight, temperature, volume, area, and speed.
Try toolReady to take control of your subscriptions?
Track every subscription, catch renewals before they hit, and stop paying for what you don't use — no bank connection required.
- No bank connection required
- No credit card to start
- Works in any country & currency
- Reminders before every charge
- One-time pricing, no recurring fee
- 30-day money-back guarantee