Body Surface Area Calculator

Estimate body surface area (BSA) using your height and weight. This value is often used in physiology and clinical calculations.

Enter body height in centimeters.
Enter body weight in kilograms.
Mosteller is simple and widely used.
Shown for interpretation only.
Choose how precise the result should look.
Changes the wording of the interpretation.
How we calculate

BSA is estimated from height and weight using one of several common equations. Mosteller uses √((height × weight) / 3600), while Du Bois and Haycock use slightly different exponents.