Body Surface Area (BSA)
Health & FitnessCalculate total human Body Surface Area (BSA) in square meters using Mosteller, DuBois, Haycock, and Gehan-George medical formulas for clinical dosage estimation.
Mosteller formula · DuBois 1.848 m² · Haycock 1.847 m²
About this calculator
Body Surface Area (BSA) is a physiological measurement of the total surface area of the human body. In clinical medicine and oncology, BSA is widely considered a superior indicator of metabolic mass than body weight alone for calculating chemotherapy drug dosages and cardiac indices.
This calculator computes BSA in square meters (m²) using the standard Mosteller formula (the clinical gold standard) alongside historical DuBois, Haycock, and Gehan-George formulas.
How It Works & Formula
Mosteller equation: BSA (m²) = √[(Height in cm × Weight in kg) / 3600]. DuBois formula: BSA = 0.007184 × Height(cm)^0.725 × Weight(kg)^0.425.
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