CalculatorHealth

BMI Calculator

Estimate body mass index from height and weight.

Instant · no account

Input

Enter your values

Weightkg

Heightcm

Method

How it works

Change any input above and the result updates instantly. The formula or method used by this tool is shown below.

BMI = weight (kg) / height² (m)

Note

Health results are general informational estimates and are not a diagnosis or medical advice.

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Quick answers

About this tool

What does the BMI Calculator do?+

Estimate body mass index from height and weight.

How does this calculator calculate the result?+

It uses this method: BMI = weight (kg) / height² (m)

Are my inputs saved or sent to an account?+

Core CalcForge tools require no account, and most calculations run locally in your browser. Favorites and recent-tool history, when used, stay in this browser.