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BMI Calculator

Health

Calculate your Body Mass Index and understand what it means for your health.

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15 18.5 24 28 40

Underweight Normal Overweight Obese

BMI Reference

Underweight BMI < 18.5

Normal 18.5 ≤ BMI < 24

Overweight 24 ≤ BMI < 28

Obese BMI ≥ 28

▶ About BMI

BMI (Body Mass Index) is a widely used international standard for measuring obesity and health.

BMI = weight (kg) ÷ height (m)²

Example:
Height 170cm, Weight 65kg
BMI = 65 ÷ (1.7)² = 22.5 (Normal range)

Limitation: BMI cannot distinguish muscle from fat. Athletes or muscular individuals may have a high BMI without being obese. Consider combining with body fat percentage and other metrics.