BMI Calculator

Free BMI calculator. Instantly check your body mass index using standard (imperial) or metric units to determine if you are at a healthy weight.

What this tool helps you do

BMI Calculator lets you enter the relevant details and get a clear result or breakdown in your browser. Use it to compare realistic scenarios before taking the next step.

How to use it

  1. Enter or select the details requested by the tool.
  2. Review the result, breakdown and any assumptions shown on the page.
  3. Change one value at a time to compare another scenario.

Accuracy, privacy and limitations

Most calculations run locally in your browser. Results are practical estimates, so confirm important figures with the relevant provider or authority before relying on them.