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Body Surface Area Calculator

m² (Average BSA)
Mosteller Formula
DuBois Formula
Haycock Formula
Gehan & George
What is BSA?

Body Surface Area (BSA) is used in many medical calculations including:
• Chemotherapy dosing
• Cardiac output measurements
• Fluid requirements
• Burn assessment

Normal adult BSA ranges from 1.6 to 2.0 m². Mosteller formula is most commonly used in clinical practice.