Body Surface Area (BSA) Calculator — Mosteller, Du Bois & Haycock
Calculate your body surface area using Mosteller, Du Bois, and Haycock formulas. Includes formula comparison, BSA reference chart, chemotherapy dosing.
BSA Calculator
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BSA (Du Bois)
1.95 m²
BSA (Haycock)
1.96 m²
Average BSA (All Formulas)
1.95 m²
⚠ Clinical Usage Warning
▼ Educational reference only. All medication dosages must be verified by a licensed pharmacist or physician.
Scenario Comparison
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√(H × W ÷ 3600)
0.007184 × W^0.425 × H^0.725
0.024265 × W^0.5378 × H^0.3964
Mosteller Formula
BSA = √(Height × Weight ÷ 3600)
BSA Reference
1.73
Avg Adult m²
1.0
Child m²
0.5
Infant m²
2.0
Large Adult m²
⚠ Clinical Usage — Educational Purposes Only
This BSA calculation is for educational reference only. All clinical dosing decisions — including chemotherapy, pediatric medications, and other treatments requiring BSA — must be verified by a licensed pharmacist or physician. Different institutions may use different BSA formulas for different protocols. Using an incorrect BSA value for drug dosing can result in underdosing or potentially toxic overdosing. This tool provides estimates and is not a substitute for professional clinical judgment.
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