Body Surface Area

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Use this calculator to determine body surface area with the Mosteller formula.

Height
cm
inches
Weight
kg
lb

About this calculator

The body surface area (BSA) calculator is used in the dosing of certain medications, including chemotherapeutic drugs. Although several formulas are used and provide slightly different results, the Mosteller formula is simple and commonly applied.

Citation

Mosteller RD. Simplified Calculation of Body Surface Area. N Engl J Med 317(17):1098. (1987)

Contributor

QxMD Nephrology contributing author: Daniel Schwartz, MD, FRCP(C)