📐 Body Surface Area (BSA) Calculator
Estimate Body Surface Area (BSA) with the Mosteller formula for drug and chemotherapy dosing.
Clinical takeaway
Mosteller is the most widely used BSA formula.
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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.
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Weight | 70 kg |
|---|---|
| Height | 170 cm |
→BSA1.82m²
- Formula：Mosteller: √(height·weight/3600)
Frequently asked questions
- What is Body Surface Area (BSA) Calculator?
- Estimate Body Surface Area (BSA) with the Mosteller formula for drug and chemotherapy dosing.
- How is Body Surface Area (BSA) Calculator calculated? What is the core formula?
- Mosteller BSA(m²) = √(height(cm) × weight(kg) / 3600).
- When is Body Surface Area (BSA) Calculator used?
- Dose calculations that are normalised to body surface area.
- What are the key clinical points for Body Surface Area (BSA) Calculator?
- 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.
- What are the limits and cautions when using Body Surface Area (BSA) Calculator?
- For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
- How is Body Surface Area (BSA) Calculator calculated in practice? Can you show a worked example?
- Inputs: Weight 70 kg, Height 170 cm → Result: BSA 1.82 m²（Formula: Mosteller: √(height·weight/3600)）