Toolvemi.

BMI Calculator

Calculate your body mass index from weight and height, in metric or imperial units.

Calculate your BMI

Your numbers never leave your device.

Browser-based
Your BMI—

Enter your weight and height.

How to use it

  1. Choose your units and enter your weight and height.
  2. Read your BMI and the category it falls in.
  3. Check the healthy range for your height.

Examples

  • 70 kg and 175 cm → BMI 22.9 (normal weight).
  • BMI = weight in kg ÷ (height in m)².

Categories follow the WHO adult classification: under 18.5 underweight, 18.5–24.9 normal, 25–29.9 overweight, 30 and above obesity. BMI is a screening number for adults. It does not measure body fat, muscle or health, and it is not suitable for children. Talk to a health professional for advice.

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