Body Surface Area Mosteller Calculator

How to use this calculator

Enter Height, Weight. The calculator applies the stated relationship and keeps full precision until the displayed result is formatted.

Formula and method

BSA = sqrt(height(cm) x weight(kg) / 3600)

The calculator uses the values you enter and evaluates this relationship with standard real-number arithmetic. Intermediate values keep full floating-point precision before the displayed result is formatted.

Worked example

Using the example values already filled into the calculator gives Body surface area = 1.844662 m^2. Change any input to calculate your own result.

Assumptions and limitations

Educational estimate only; clinical decisions require a qualified professional.

This educational tool is not a diagnosis, treatment recommendation, or substitute for professional medical advice.

Verify important decisions independently and see our methods and limitations.