Work out body surface area dosing instantly with clear inputs, formula shown and shareable results.
Calculates body surface area with the Mosteller and Du Bois formulae and multiplies the Mosteller value by the prescribed dose per square metre.
BSA formulae
Mosteller: BSA = sqrt(height cm x weight kg / 3600). Du Bois: BSA = 0.007184 x height^0.725 x weight^0.425
Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
Mosteller is the most common in oncology because it is simple and agrees closely with Du Bois.
Many protocols cap BSA at 2.0 or 2.2 m2 for cytotoxic dosing; local policy decides.