BMI calculator
Type your height and weight, in kilos or pounds. You get a BMI and which adult range it sits in. It’s a screening number, not a verdict on your health.
kg or lb
cm or in
Result
BMI
22.9
BMI category for adults
18.5 to 24.9
Adult ranges from the WHO. A ballpark, not a doctor’s reading.
Here’s one
70 kg and 175 cm
70 kg at 175 cm comes out at 22.9. For adults, that sits in the 18.5 to 24.9 range.
How it works
We divide your weight by your height squared, after turning pounds and inches into kilos and meters if you picked those.
Where this comes from
The ranges for adults are the screening cutoffs from the World Health Organization. They are not a diagnosis, and they are not for children.
Good for
A quick check for an adult. It can’t see muscle, age, or how you actually feel.
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Not a checkup
A rough figure from height, weight, or calories. It doesn’t tell you if you’re healthy.