Fitness & Health

BMI Calculator (Body Mass Index, Metric & Imperial)

Enter your height and weight and you get your Body Mass Index plus the WHO category it falls in. It works in metric or imperial and shows your healthy weight range.

How to use
  1. Switch to metric or imperial units.
  2. Enter your height and weight.
Estimates for general wellness, not medical advice. Check with a doctor or dietitian before acting on health figures.
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Reference ranges

BMICategory
Below 18.5Underweight
18.5 – 24.9Healthy weight
25.0 – 29.9Overweight
30.0 – 34.9Obesity class 1
35.0 and aboveObesity class 2–3

Common questions

How is BMI calculated?

Weight in kilograms divided by height in meters squared. For imperial, multiply weight in pounds by 703 and divide by height in inches squared.

Is BMI accurate for athletes?

Not always. Muscle weighs more than fat, so very muscular people can land in the overweight range while having low body fat.

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