BMI Calculator
BMI calculator
BMI is weight (kg) ÷ height (m)² — a general screening figure for whether weight is in a healthy range for height. A BMI of 18.5–24.9 is considered healthy for adults. Enter your height and weight below in metric or imperial.
0BMI
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Enter height and weight
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Frequently asked questions
How is BMI calculated?
Weight (kg) ÷ height (m)². In imperial: weight (lb) × 703 ÷ height (in)².
What is a healthy BMI?
Under 18.5 underweight, 18.5–24.9 healthy, 25–29.9 overweight, 30+ obese (adults).
Is BMI accurate?
A useful general screen, but it doesn't separate muscle from fat or account for age/sex. Treat it as a rough guide.
BMI is a general screening tool, not medical advice. Consult a professional for health decisions.