📐 Body Surface Area (BSA) Calculator
Estimate Body Surface Area (BSA) with the Mosteller formula for drug and chemotherapy dosing.
Body Surface Area (BSA) Calculator
Weight (kg)
Height (cm)
When to use
Dose calculations that are normalised to body surface area.
How it works
Mosteller BSA(m²) = √(height(cm) × weight(kg) / 3600).
Key points
- Mosteller is the most widely used BSA formula.
- Du Bois and other formulas give slightly different values.
- Dose capping policies may apply for very high BSA.
References
Decision support for licensed clinicians only; not a substitute for clinical judgement, diagnosis or local protocols.