BMI Calculator

Free online BMI Calculator. No sign-up needed, and it runs in your browser.

Processed on your device

Work out your body mass index (BMI) and the healthy weight range for your height. For adults 18 and over.

BMI is a quick screening number, not a diagnosis — it doesn't tell muscle from fat. The ranges are the WHO ones for adults; health groups suggest lower cut-offs for people of South Asian, Chinese and some other backgrounds.

How to use

  1. Add your text or file.
  2. Adjust the options if needed.
  3. Copy or download the result.