BMI Calculator

Get your Body Mass Index and category from height and weight.

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Calculate your Body Mass Index (BMI) from your height and weight, in either metric (cm/kg) or imperial (ft-in/lb) units. The tool shows your BMI value and the standard category - underweight, normal, overweight or obese - with a clear visual scale. It is a quick general reference and is calculated instantly in your browser.

How to use BMI Calculator

  1. 1

    Choose metric or imperial units.

  2. 2

    Enter your height and weight.

  3. 3

    Read your BMI value and category.

Frequently asked questions

BMI is your weight in kilograms divided by the square of your height in metres (kg/m²). Imperial values are converted automatically.

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