Estimates body surface area in square meters from height and weight using the Mosteller formula.
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Disclaimer: General formula only. Not medical advice. Dosing decisions belong to a licensed clinician and the product's label.
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Inputs
height_cm (number, cm, required) min 0 : Height in centimeters
weight_kg (number, kg, required) min 0 : Body weight in kilograms
Outputs
bsa (m^2): Estimated body surface area
Steps
bsa = sqrt(height_cm * weight_kg / 3600).
Round the result to 2 decimal places.
Constants
divisor = 3600 cm*kg (source: Simplified calculation of body-surface area)
Sources
Simplified calculation of body-surface area (New England Journal of Medicine, Mosteller RD, 1987;317(17):1098, 2026-09-30T19:20:00Z) - Source of the sqrt(height*weight/3600) formula.