Body Surface Area Calculator
Calculate body surface area using clinical formulas.
3 formulas
m2 output
Clinical standard
Clinical utility
BSA is used for medication dosing and clinical assessments. Use the formula that matches your clinical context.
Assumptions
Formulas estimate surface area from height and weight and output square meters (m2).
Mosteller is common
Mosteller is widely used for its simplicity and reasonable accuracy across adults and children.