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BMI Calculator

Calculate your body mass index using metric or imperial units. Informational only.

Calculator

Imperial examples: 5'10 or 5 10
BMI
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What is BMI?

Body Mass Index (BMI) is a simple screening metric that compares weight to height. It’s often used to group results into underweight, normal range, overweight, and obesity categories. BMI does not directly measure body fat and may be less accurate for some people (for example, very muscular athletes).

How to use this BMI calculator

FAQ

Is BMI a diagnosis?

No. BMI is a screening tool and not a diagnosis.

Why can BMI be misleading?

BMI doesn’t measure muscle vs fat, and body composition varies by person.

What should I do with my result?

Use it as a guide. For medical advice, consult a licensed professional.