Body Surface Area (BSA) Calculator
Enter height and weight to estimate body surface area (m2) with DuBois and Mosteller formulas.
Input Data
Centimetres
cm
Kilograms
kg
Results
square metres
1.75m²
square metres
1.75m²
DuBois 1.75 m2; Mosteller 1.75 m2.
At a glance:DuBois: BSA = 0.007184 * height(cm)^0.725 * weight(kg)^0.425. Mosteller: BSA = sqrt(height(cm) * weight(kg) / 3600). Unit m2.
Formula
DuBois: BSA = 0.007184 * h^0.725 * w^0.425.
Mosteller: BSA = sqrt(h * w / 3600).
How to Use
- Enter height (cm) and weight (kg).
- Get both DuBois and Mosteller BSA estimates.
Case Studies
170cm / 65kg
DuBois ~ 1.77 m2; Mosteller = sqrt(170*65/3600) ~ 1.75 m2.
FAQ
Which formula is more accurate?
They are close; DuBois is common for adults and Mosteller is simple (also used for children).
What is BSA used for?
It standardizes body size for some drug (e.g. chemotherapy) dosing and burn-area assessment.
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References
Content reviewed by the Calculatorism editorial team. Results are for reference only; please refer to the relevant authorities for the official figures.