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health.body-surface-area Calculator
Calculates Body Surface Area (BSA) using the Mosteller, DuBois, and Haycock formulas from weight and height, and recommends which to use. BSA is used for chemotherapy dosing, cardiac output normalisation, and burn fluid resuscitation — formula choice matters for very small or very large patients.
Inputs
Weight
Body or object weight. For health calculators, usually in kg or lbs.
Height
Vertical measurement. For health calculators, typically standing height without shoes.
Formula
Reference formula or conversion factor shown for context.
Age
Age in completed years. Many health and fitness formulas adjust for age.
Results
BSA (m^2)
BSA (body surface area) -- total skin surface in m2. Estimated by the Mosteller or DuBois formula. Used for chemotherapy dosing, burn assessment, and cardiac indices.
Mosteller
Reference formula or conversion factor shown for context.
DuBois
Reference formula or conversion factor shown for context.
Boyd
Reference formula or conversion factor shown for context.
drug dosing (typical)
Sample size or count used in the calculation.
BSA uses: drug dosing, burn assessment
BSA (body surface area) -- total skin surface in m2. Estimated by the Mosteller or DuBois formula. Used for chemotherapy dosing, burn assessment, and cardiac indices.