BMI Calculator

Enter your height and weight to get your Body Mass Index, WHO weight category, and a healthy weight range for your height.

Height (cm)

Weight (kg)

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About BMI

BMI is weight divided by height squared (kg/m²), the same formula the WHO and CDC use. It's a screening number, not a diagnosis — it doesn't distinguish muscle from fat.

This calculator runs entirely in your browser — nothing is sent or stored. For a full picture of your health, talk to a doctor who can factor in what BMI alone can't see.