Body Surface Area (BSA) Metric (kg/cm) Imperial (lbs/in) Calculation Formula Du Bois FormulaMosteller FormulaHaycock FormulaGehan & George Formula Weight (kg) Height (cm) Weight (lbs) Height (inches) Calculate About Body Surface AreaBSA is used in medical practice for:Chemotherapy dosingCardiac index calculationsBurn assessmentPediatric medicationNormal Range: Average adult BSA ≈ 1.7 m²