Calculate your Body Mass Index — metric or imperial.
Height
cm
Weight
kg
Enter your height and weight above
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—
UnderNormalOverObese
Underweight
Below 18.5
Normal weight
18.5 – 24.9
Overweight
25 – 29.9
Obese
30 and above
Free BMI calculator — metric and imperial
Calculate your Body Mass Index (BMI) instantly. Supports both metric (kg and cm) and imperial (lbs, feet and inches). BMI is calculated as weight divided by height squared. No sign-up, no pop-ups.