BMI (Body Mass Index) is a simple measure of body fat based on height and weight. It applies to adult men and women.

What are the BMI categories?

Underweight (<18.5), Normal (18.5-24.9), Overweight (25-29.9), Obese (30+).

Is BMI always accurate?

BMI is a screening tool, not a diagnostic measure. It does not account for muscle mass, bone density, or body composition.

BMI Calculator

Calculate your Body Mass Index (BMI) online for free. Enter your height and weight to get your BMI value and health category. Supports both metric and imperial units.

Height (cm)

Weight (kg)

Underweight

< 18.5

Normal weight

18.5 – 24.9

Overweight

25 – 29.9

Obese

≥ 30

How to Use BMI Calculator

Choose metric or imperial units.
Enter your height.
Enter your weight.
See your BMI and health category.

Frequently Asked Questions

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