Calculate your BSA using different formulas
BSA is a measurement used in many medical tasks. Different formulas may be more accurate for specific populations or body types.
The Body Surface Area (BSA) Calculator helps estimate the total area of your body using your height and weight. BSA is an important health metric used in medical and fitness settings, especially when calculating the right dose of medications or assessing body composition.
What is Body Surface Area (BSA)?
BSA is the measured or calculated surface area of a human body. It is usually expressed in square meters (m²). Unlike body weight alone, BSA provides a more accurate measurement for some clinical decisions, especially in cancer treatment, organ transplantation, and IV drug dosing.
Common Formulas for BSA
- DuBois and DuBois Formula:
BSA = 0.007184 × Height(cm)0.725 × Weight(kg)0.425 - Mosteller Formula (Simpler):
BSA = √([Height(cm) × Weight(kg)] ÷ 3600)
Height = 170 cm, Weight = 65 kg
BSA = √([170 × 65] ÷ 3600) ≈ 1.76 m²
Why is BSA Important?
- Used in medical treatments for adjusting drug dosages
- Helps evaluate metabolic rate and body fluid levels
- Useful for calculating nutritional and caloric needs
- Better suited than BMI for children and patients with abnormal body weight
When to Use the BSA Calculator
- During hospital checkups or before treatment plans
- To determine safe medication dosage (especially chemotherapy)
- For fitness analysis and sports performance
- In research or academic health studies
Conclusion
The Body Surface Area Calculator is a reliable tool for medical professionals and fitness experts. It gives a clearer picture of body size than just weight alone. Whether you're a patient or a healthcare provider, knowing your BSA can support better health decisions and safe medication dosing.