Body Surface Area (BSA)
Estimate your body surface area — used clinically for drug and chemotherapy dosing.
✓ Reviewed by Dr. Poonam Sekhon Chahal · 24 May 2026
How this is calculated
Mosteller (the most common clinical formula): BSA = √[(height_cm × weight_kg) / 3600]. DuBois and Haycock are shown for comparison.
Sources
This calculator is for educational purposes and is not a substitute for professional medical advice, diagnosis, or treatment. The result is based on standard clinical formulas applied to the values you entered — your individual situation may need adjustments your doctor can make. Never disregard professional medical advice or delay seeking it because of something you read or calculated on healthcalculus.