Calculate Body Surface Area (BSA) in Square Meters
Expert Guide to Body Surface Area Calculation
Introduction & Importance
Body Surface Area (BSA) is a crucial metric in medicine, pharmacy, and physiology. It’s used to calculate drug dosages, estimate metabolic rates, and more. The most common formula to calculate BSA is the Du Bois formula.
How to Use This Calculator
- Enter your height in centimeters.
- Enter your weight in kilograms.
- Click ‘Calculate’.
Formula & Methodology
The Du Bois formula is: BSA (m²) = (W^0.425 * H^0.725) / 100, where W is weight in kg and H is height in cm.
Real-World Examples
| Height (cm) | Weight (kg) | BSA (m²) |
|---|---|---|
| 170 | 70 | 1.85 |
| 160 | 60 | 1.68 |
| 180 | 80 | 2.12 |
Data & Statistics
| Age Group | Average BSA (m²) |
|---|---|
| 18-30 | 1.9 |
| 31-50 | 1.85 |
| 51+ | 1.75 |
Expert Tips
- Always use the Du Bois formula for adults.
- For children, use the Mosteller formula.
- BSA can vary greatly among individuals of the same height and weight.
Interactive FAQ
What is the normal range for BSA?
The normal range for BSA is approximately 1.5 to 2.2 m² for adults.
How does BSA affect drug dosages?
BSA is used to calculate drug dosages to ensure safe and effective treatment.