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BMI calculator

Check body mass index from height and weight.

Units
cm
kg
ft
in
lb

Your BMI

Enter your height and weight.

BMI
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WHO category
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South Asian cut-offs
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Healthy weight for your height
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BMI is a quick screening number for adults. It does not measure body fat directly, and it is not meant for children, pregnancy or very muscular people. Talk to a doctor about your health.

Worked out in your browser. Nothing you type is sent anywhere.

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How to check your BMI

  1. Choose cm and kg, or feet and pounds.
  2. Type your height and weight.

BMI is your weight in kg divided by your height in metres squared. For example, 70 kg at 170 cm is 24.2.

What the numbers mean

  • Under 18.5: underweight
  • 18.5 to 24.9: healthy weight
  • 25 to 29.9: overweight
  • 30 and over: obese

South Asian cut-offs

People of South Asian origin tend to have health risks such as diabetes at a lower BMI. The WHO suggests action points of 23 for increased risk and 27.5 for high risk, and Pockit shows both.

Is BMI accurate for everyone?

No. It does not tell muscle from fat and is not used for children or in pregnancy. A doctor can look at the whole picture, including waist size.