How it works
Body surface area is commonly used as a size-normalization estimate. The calculator displays six published equations because their results are not identical, especially at unusual body sizes.
Input query strings and outputs
Use an input name in this page’s URL as ?name=value, and join additional inputs with &. Portable shared links may instead use the compact ?ac= state parameter.
Input query strings
7-
?unitSystem=UnitsChoice · Required · Default: metric · Accepted values: metric, imperial
-
?sex=Sex used by equationChoice · Required · Default: male · Accepted values: male, female
-
?weightKg=WeightNumber · Required · Default: 70 · Used when unitSystem = metric
-
?heightCm=HeightNumber · Required · Default: 175 · Used when unitSystem = metric
-
?weightLb=WeightNumber · Required · Default: 154 · Used when unitSystem = imperial
-
?feet=Height feetNumber · Required · Default: 5 · Used when unitSystem = imperial
-
?inches=Height inchesNumber · Required · Default: 9 · Used when unitSystem = imperial
Outputs
7-
mostellerMosteller BSANumber · Primary output · Suffix: m²
-
duBoisDu Bois BSANumber · Suffix: m²
-
haycockHaycock BSANumber · Suffix: m²
-
gehanGeorgeGehan–George BSANumber · Suffix: m²
-
boydBoyd BSANumber · Suffix: m²
-
schlichSchlich BSANumber · Suffix: m²
-
averageFormula averageNumber · Suffix: m²
Clinical limit
Do not use an unverified web-calculator result as the sole basis for medication dosing or treatment.