Body Surface Area (BSA) Calculator
Calculate BSA in m² using clinical formulas. Used for medication dosing, chemotherapy calculations, and burn assessment.
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Frequently Asked Questions
Why is body surface area used in medicine?
BSA is used for dosing chemotherapy drugs, calculating cardiac index, and assessing burn injuries (Rule of Nines). It’s a better predictor of drug metabolism than body weight alone for highly toxic medications.
What is the average body surface area for adults?
Average adult male: approximately 1.9 m². Average adult female: approximately 1.6 m². Newborns: approximately 0.25 m². BSA increases steadily from infancy to adulthood.