Health Calculators

BMI Calculator

Calculate body mass index from height and weight. The estimate updates in your browser as you type.

BMI 25.846

General screening number, not a diagnosis.

Local estimate.

What this tool is for

BMI Calculator is built for wellness estimation inside health calculators when you need to compares weight and height as body mass index. It focuses on bmi instead of making you adapt a broad calculator to a narrow task.

When to use it

Use it when weight and height are already known and you want a fast estimate before comparing options, checking a worksheet, or copying the result into another workflow.

Inputs

  • Weight is one of the direct inputs used to calculate bmi. Use lb for this field.
  • Height describes the size or distance used in the calculation. Use in for this field.

Formula

BMI = weight lb x 703 / height in^2

Example

170 lb and 68 in gives a BMI of about 25.85.

What the result means

The result labeled "BMI" is the direct output of BMI = weight lb x 703 / height in^2. In the worked example, 170 lb and 68 in gives a BMI of about 25.85.

Before you rely on the result

This is a general wellness estimate, not medical advice, diagnosis, or a treatment recommendation.