BMI Calculator

Calculate your body mass index using metric or imperial measurements.
Enter your weight and height to calculate BMI and view the standard adult category for the result.

Enter your weight in kilograms.

Enter your height in centimeters.

Your BMI result will appear here
Enter your weight and height, then select Calculate BMI.

How to use the BMI calculator

  1. Choose metric or imperial units.
  2. Enter your weight and height.
  3. Select Calculate BMI to view the result and category.

Example

An adult who weighs 70 kg and is 175 cm tall has a BMI of 22.9.

BMI limitations

  • BMI is intended for adults aged 18 and over.
  • It is not intended for children or for use during pregnancy.
  • It may be less accurate for athletes and people with high muscle mass.
  • It does not diagnose health conditions or replace professional medical advice.

The result is for general information only.

BMI is not a medical diagnosis.

The result does not replace advice from a doctor or qualified health professional.

Privacy

Your weight, height, result, and validation state stay in the calculator interface and are not added to the URL.

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