cm
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in
kg
lbs
Results
Results will appear here after entering your measurements
Results
Your Body Surface Area (BSA)
m²
DuBois Formula (Most Common)
Mosteller: √((W × H) / 3600)
m²
Haycock: 0.024265 × W^0.5378 × H^0.3964
m²
Gehan & George: 0.0235 × W^0.51456 × H^0.42246
m²
Boyd: 0.0003207 × W^(0.7285 - 0.0188 log10 W) × H^0.3
m²
BSA Calculation Formulas
Body Surface Area (BSA) is the measured or calculated surface area of a human body. Various formulas have been developed over the years, with DuBois and Mosteller being the most commonly used in clinical settings.
Common Formulas
DuBois: 0.007184 × W^0.425 × H^0.725
Mosteller: √((W × H) / 3600)
Haycock: 0.024265 × W^0.5378 × H^0.3964
Gehan & George: 0.0235 × W^0.51456 × H^0.42246
Boyd: 0.0003207 × W^(0.7285 - 0.0188 log10 W) × H^0.3
Average BSA Values
| Population | Average BSA (m²) |
|---|---|
| Neonate | 0.25 |
| Child (2 years) | 0.5 |
| Child (9 years) | 1.07 |
| Child (10 years) | 1.14 |
| Child (12-13 years) | 1.33 |
| Adult Woman | 1.6 |
| Adult Man | 1.9 |
How to Use BSA Calculator
- Enter your height (cm)
- Enter your weight (kg)
- Select a formula (e.g., DuBois)
- View the calculation result
Tips
- DuBois and Mosteller are most common formulas
- Results for reference only; consult a doctor for medical use
- Ensure input data accuracy
