Body Surface Area Calculator
Calculate your body surface area using the Mosteller formula — essential for clinical drug dosing.
About Body Surface Area
Body Surface Area (BSA) is used in medicine to calculate drug doses (especially chemotherapy), burn area assessment, and pediatric drug dosing. The Mosteller formula — √(height×weight/3600) — is the most widely adopted due to its simplicity and accuracy.
BSA Formulas Compared
| Formula | Equation |
|---|---|
| Mosteller (recommended) | √(H × W / 3600) m² |
| DuBois & DuBois | 0.007184 × H^0.725 × W^0.425 m² |
Average adult BSA ≈ 1.7–1.9 m²
This calculator is for educational purposes only. Consult a qualified healthcare professional for medical advice.