Health Formula • Published on July 30, 2026 • Last updated August 09, 2026
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Standing height in centimeters
Body weight in kilograms
Body Surface Area, measured in square meters (m²)
The Mosteller formula is the simplest and most widely used method for estimating Body Surface Area, a measurement used clinically for drug dosing (especially chemotherapy) and for normalizing physiological measurements like kidney filtration rate (eGFR). Several other validated formulas exist (Du Bois, Haycock, Gehan & George, Boyd), each using slightly different regression coefficients, and are often averaged together since no single formula is universally agreed upon as most accurate.
BSA correlates more closely than body weight alone with metabolic rate and organ function, particularly for drugs like chemotherapy agents, making it a more precise basis for calculating safe and effective doses.
Each formula (Mosteller, Du Bois, Haycock, Gehan & George, Boyd) was derived from a different study population and regression method, so results typically vary by only a few percent — Mosteller is preferred for its simplicity while Du Bois is often considered a historical clinical standard.
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