Body Surface Area Calculator

Calculate your Body Surface Area using three established medical formulas. BSA is used in drug dosing and clinical assessments.

📐 Body Surface Area

Weight (kg)

Height (cm)

BSA (m²)

Du Bois1.81 m²

Mosteller1.82 m²

Haycock1.83 m²

💡 Body Surface Area Formulas

Du Bois (1916): 0.007184 × W^0.425 × H^0.725. Mosteller (1987): √(W×H/3600). Haycock (1978): 0.024265 × W^0.5378 × H^0.3964. All give results in m².

BSA is primarily used in medicine for calculating chemotherapy doses, burn area assessment, cardiac index, and renal function. Average adult BSA: 1.7-2.0 m².

70 kg, 170 cm: Du Bois BSA = 1.81 m², Mosteller = 1.81 m², Haycock = 1.82 m².