🩺 Clinical Pharmacology & Physiological Index Solver
Body Surface Area (BSA) Calculator
Calculate total skin surface area in $m^2$ across 5 clinical formulas (Mosteller, Du Bois, Haycock, Gehan-George, Boyd) for physiological and pharmaceutical normalization.
cm
kg
Standard Benchmarks:
Average Adult (175 cm, 70 kg)
Average Female (162 cm, 58 kg)
Child (110 cm, 18 kg)
Newborn Infant (50 cm, 3.5 kg)
Mosteller Body Surface Area (Standard)
1.84 m²
Comparison Across 5 Clinical BSA Formulas:
Mosteller (1987)
1.84 m²
Du Bois & Du Bois
1.83 m²
Haycock (Pediatric)
1.83 m²
Gehan & George
1.84 m²
Medical Applications of Body Surface Area (BSA)
In medicine, Body Surface Area is a more accurate physiological indicator of metabolic mass, basal metabolic rate, and drug clearance than weight alone:
- Chemotherapy & Oncology Dosing: Narrow-therapeutic-index oncology drugs are dosed per square meter ($mg/m^2$) of BSA to prevent toxicity.
- Renal Function (eGFR): Glomerular filtration rates are clinically normalized to standard body surface area ($1.73\text{ m}^2$).
- Cardiac Index ($\text{CI}$): Cardiac output normalized per square meter ($\text{L/min}/m^2$).