Body Surface Area for Chemotherapy
Enter height and weight to calculate BSA using four clinical formulas (Mosteller, DuBois, Haycock, Gehan-George) commonly used for chemotherapy dosing.
Patient Measurements
Enter height and weight to compute BSA
If entered, total dose (mg) will appear in results.
Enter measurements and click Calculate
Results from 4 BSA formulas will appear here
BSA Results
Mosteller (Recommended)
—
m²
Total Dose
mg
| Formula | BSA (m²) | Total Dose (mg) |
|---|
Formula Reference
Mosteller: √(Height(cm) × Weight(kg) / 3600)
DuBois: 0.007184 × Height(cm)0.725 × Weight(kg)0.425
Haycock: 0.024265 × Height(cm)0.3964 × Weight(kg)0.5378
Gehan-George: 0.0235 × Height(cm)0.42246 × Weight(kg)0.51456
Clinical Disclaimer: This tool is for educational and verification purposes only. All chemotherapy dosing must be confirmed by a licensed oncology pharmacist or physician following institutional protocols.
Summary
Enter height and weight to calculate BSA using four clinical formulas (Mosteller, DuBois, Haycock, Gehan-George) commonly used for chemotherapy dosing.
How it works
- Enter the patient height and weight in metric (cm/kg) or imperial (in/lb) units.
- The calculator applies four established BSA formulas at once: Mosteller, DuBois, Haycock, and Gehan-George.
- Each result is shown in m² in a side-by-side comparison table.
- Multiply any BSA value by the prescribed mg/m² drug dose to get the total dose.
Use cases
- Oncology nurses verifying chemotherapy dose calculations.
- Medical students learning BSA-based pharmacokinetic principles.
- Pharmacists double-checking prescribed drug doses in mg/m².
- Researchers comparing BSA formula outputs across patient populations.
Frequently Asked Questions
Last updated: 2026-06-09 ·
Reviewed by Nham Vu