BMI Calculator

Calculate your body mass index in metric or imperial units.

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About the BMI Calculator

BMI Calculator estimates your body mass index from your height and weight and shows the World Health Organization category and the healthy weight range for your height. Metric and imperial units are supported.

How to use the BMI Calculator

Choose metric or imperial units.
Enter your weight and height.
See your BMI, category and healthy weight range.

Frequently asked questions

Is BMI accurate for everyone?

BMI is a general screening tool for adults. It does not distinguish muscle from fat and is not suitable for children or pregnant women.

What is a healthy BMI?

For adults, 18.5 to 24.9 is considered a healthy range.