Body Composition calculators

BMI, body fat, ideal weight and body shape.

Body mass index from height and weight, with your healthy weight range.

Estimate body fat percentage from tape measurements.

Compare ideal weight from four classic formulas.

Split your weight into lean mass and fat mass.

Check where your body stores fat and the related health risk.

A simple rule: keep your waist under half your height.

BSA by Mosteller, DuBois and Haycock formulas.

A shape-based index of visceral fat from waist and height.

How far your BMI sits from the upper healthy limit of 25.

Small, medium or large frame from height and wrist size.

Related guides

BMI is a quick screening number. Here is what it measures, where it falls short and how to use it sensibly.

There is no single perfect weight. Learn how clinicians use ranges and several formulas.

What counts as lean, average or high body fat, and how to estimate yours at home.