Body Surface Area Calculator
Calculate BSA using multiple proven medical formulas
Body Surface Area Calculator
Calculate your Body Surface Area (BSA) using multiple proven formulas. BSA is used in medical settings for medication dosing, cardiac output calculations, and metabolic assessments.
📏 Body Measurements
📊 BSA Results
Results by Formula
| Formula | m² | ft² |
|---|---|---|
| Du Bois | 1.85 | 19.95 |
| Mosteller | 1.85 | 19.91 |
| Haycock | 1.85 | 19.94 |
| Gehan & George | 1.86 | 20.01 |
| Boyd | 1.86 | 19.98 |
| Fujimoto | 1.79 | 19.30 |
| Takahira | 1.87 | 20.11 |
| Schlich | 1.77 | 19.01 |
Reference Values
📚 Understanding Body Surface Area
What is BSA?
Body Surface Area (BSA) is the measured or calculated surface area of a human body. It's used in medical settings for dosing medications, cardiac output calculations, and metabolic assessments.
Medical Applications
BSA is commonly used for chemotherapy dosing, cardiac index calculations, and determining metabolic mass. It provides a more accurate indicator than body weight alone.
Calculation Methods
Multiple formulas exist for BSA calculation, with Du Bois being the most widely used. Different formulas may be more accurate for specific populations or body types.
BSA Formulas
The following formulas are used to calculate BSA where BSA is in m², weight (W) is in kg, and height (H) is in cm:
Du Bois Formula
BSA = 0.007184 × W^0.425 × H^0.725
Mosteller Formula
BSA = 0.016667 × W^0.5 × H^0.5
Haycock Formula
BSA = 0.024265 × W^0.5378 × H^0.3964
Gehan & George Formula
BSA = 0.0235 × W^0.51456 × H^0.42246