Body Surface Area Calculator
Calculate your Body Surface Area (BSA) using proven medical formulas. Essential for medication dosing, chemotherapy protocols, and physiological assessments.
Body Measurements
Required for Boyd formula calculation
Body Surface Area Results
Formula Comparison
Medical Applications
BSA Reference Ranges
Enter your measurements to calculate body surface area
Understanding Body Surface Area
What is BSA
Body Surface Area (BSA) is a measurement of the total surface area of the human body. It's more accurate than body weight for medical dosing and physiological calculations.
Medical Applications
BSA is crucial for chemotherapy dosing, cardiac output calculations, metabolic rate estimates, and burn assessment using the Rule of Nines.
Formula Differences
DuBois is most common in clinical practice, Mosteller is simpler and equally accurate, Boyd includes age making it better for pediatrics, and Haycock offers good alternatives.
Clinical Importance
BSA provides more accurate dosing than weight-based calculations, especially for medications with narrow therapeutic windows like chemotherapy agents and cardiac medications.
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