Health

BMI Calculator

Calculate body mass index from height and weight, plus a general BMI category.

BMI inputs

Get a quick screening estimate for body weight category.

BMI 0

Category 0

Healthy weight range 0

General adult reference ranges. Local clinical guidance may differ.

Underweight Below 18.5

Normal 18.5-24.9

Overweight 25.0-29.9

Obesity 30.0 and above

Health calculators are informational and are not medical advice.

BMI = weight in kilograms / height in meters squared.

A person who is 175 cm and 72 kg has a BMI of about 23.5.

Results are estimates based on the values you enter.
Calculators with schedules show how values change over time.
For financial, health, or construction decisions, compare these estimates with professional advice when needed.

Is BMI a diagnosis?

No. BMI is a screening estimate and does not measure body fat directly.

Can athletes have a high BMI?

Yes. Higher muscle mass can raise BMI without indicating the same health risk.

Which units does this use?

This version uses centimeters and kilograms for a simple metric calculation.

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