BMI Calculator

Check your Body Mass Index instantly — free and private.

Private by design: this tool runs 100% in your browser — nothing is uploaded anywhere.

Free online BMI calculator

BMI (Body Mass Index) tells you whether your weight is healthy for your height. Enter your height and weight to get your BMI and category instantly.

How to use

  1. Choose cm or ft / in and enter your height.
  2. Enter your weight in kg.
  3. Tap Calculate BMI to see your score and health category.