Body Composition Calculators
Body mass, body fat and lean mass estimates.
- BMI CalculatorCalculate body mass index in metric or US units, with categories and a healthy-weight range.
- BMI Calculator by AgeCalculate your BMI and see how the reading should be read differently at 25, at 50 and after 65.
- BMI Calculator for MenCalculate your body mass index and see your healthy-weight range, plus why a muscular build can push the number higher than your body fat suggests.
- BMI Calculator for WomenWork out your body mass index and see where it sits on the adult scale, with the context women actually need: body-fat differences, waist thresholds and when BMI does not apply.
- BMI ChartSee the full adult BMI chart, then calculate exactly where your own height and weight fall on it.
- Body Fat CalculatorEstimate body fat percentage from tape measurements using the US Navy method.
- Body Surface Area CalculatorCalculate body surface area with the Mosteller, Du Bois, Haycock and Gehan-George formulas.
- Height Percentile CalculatorSee what percentage of adults you are taller than, based on national height distributions.
- Ideal Weight CalculatorCompare the Robinson, Miller, Devine and Hamwi ideal-weight formulas plus the healthy BMI range.
- Lean Body Mass CalculatorEstimate lean body mass with the Boer, James and Hume equations.
- Weight Percentile CalculatorSee where your body weight sits in the adult population distribution for your sex.