Body Surface Area (BSA) Calculator

Estimates BSA using the Mosteller formula (default), with Du Bois and Haycock shown for comparison — commonly used for chemotherapy dosing and cardiac index.

in kilograms (kg)
in centimeters (cm)
Body Surface Area
m² (Mosteller)

Formulas: Mosteller = √((height(cm) × weight(kg)) / 3600). Du Bois = 0.007184 × height(cm)^0.725 × weight(kg)^0.425. Haycock = 0.024265 × height(cm)^0.3964 × weight(kg)^0.5378. Results are estimates — clinical dosing decisions should follow institutional protocols.