Endocrinology and metabolism
Body Surface Area (Mosteller)
BSA for drug dosing (chemotherapy, paediatrics).
Body Surface Area (Mosteller) calculator
Result
1.82m²
Average adult ~1.7–1.8 m²
How to use it
- 1
Mosteller formula. BSA = √(height cm × weight kg / 3600).
- 2
Other formulas. Du Bois, Haycock, Gehan — all give similar results for adults.
- 3
Chemotherapy dosing. Many oncology regimens dosed in mg/m². Always verify BSA with oncology.
When to use it
- Chemotherapy
- Dose = drug_dose_per_m² × BSA.
- Paediatric drug dosing
- BSA-based dosing more accurate than weight alone in children.
- Cardiac index
- Cardiac index = cardiac output / BSA. Normal: 2.2–4.2 L/min/m².
A reference for clinicians and students, not medical advice. A score supports a decision; it does not make one. Check every result against the patient in front of you and your local protocol.
At a glance
- Specialty
- Endocrinology and metabolism
- Inputs
- 2
- Type
- Formula
