Calculate your BSA using multiple validated formulas.
Body Surface Area (BSA) is the total surface area of the human body measured in square metres. It is widely used in medicine to calculate drug dosages (particularly chemotherapy), determine cardiac output, and assess metabolic rates. This calculator uses four validated formulas — Mosteller, DuBois & DuBois, Haycock, and Gehan & George — and presents an average for the most reliable estimate.
Four Validated Formulas
Mosteller, DuBois, Haycock, and Gehan-George — compare results from the most widely used BSA equations.
Averaged Result
Presents the mean across all four formulas for a more robust estimate.
Simple Input
Just weight and height — no complex measurements required.
Clinical Context
Includes reference ranges and clinical significance of BSA values.
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