Oncology · Nephrology · Internal Medicine
Body Surface Area (Boyd) calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
Result
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Formula inputs
- Body weight (kg)Accepted range: 2 to 300
- Height (cm)Accepted range: 40 to 250
Primary source
Haycock GB et al. Geometric method for measuring body surface area: a height-weight formula validated in infants, children, and adults. J Pediatr. DOI: 10.1016/S0022-3476(78)80600-2. PMID: 650346. Scope: Boyd body surface area (m²) = 0.0003207 × height(cm)^0.3 × weight(g)^(0.7285 − 0.0188 × log10[weight(g)]) as cited in comparative BSA validation studies. (1935)
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