What BMI ranges are used?

Under 18.5 is underweight, 18.5–24.9 normal, 25–29.9 overweight, and 30+ obese.

Does this work with imperial units?

Yes, switch to the Imperial tab to enter feet, inches, and pounds.

Is BMI a perfect health measure?

No, it doesn't account for muscle mass or body composition, but it's a useful general indicator.

BMI Calculator

Calculate your Body Mass Index and healthy weight range.

Works Offline

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BMI Calculator

Choose units and enter your measurements

Height (cm)

Weight (kg)

Result

Updates live as you type

BMI

22.9

About the BMI Calculator

Enter your height and weight in metric or imperial units to calculate your Body Mass Index (BMI), see which category it falls into, and get a healthy weight range for your height.

Examples

175cm, 70kg

height=175cm, weight=70kg

Output

BMI: 22.9, Normal weight

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Frequently asked questions

Version 1.0.0 · Updated 2026-08-06 · Runs entirely in your browser