Standards message here

medical collegeeducationresearchpatient caredepartments
Cornell Pediatrics

Body Surface Area

Calculate body surface area given the height and weight

Input Weight kg lbs
Input Height cm in
Body surface area (m2) =


The calculation is from the formula of DuBois and DuBois:

BSA = (W 0.425 x H 0.725) x 0.007184

where the weight is in kilograms and the height is in centimeters.

  1. DuBois D, DuBois EF. A formula to estimate the approximate surface area if height and weight be known. Arch Intern Medicine. 1916; 17:863-71.
  2. Wang Y, Moss J, Thisted R. Predictors of body surface area.
    J Clin Anesth. 1992; 4(1):4-10.


Created: December 9, 1998
Revised: October 19, 2000

Weill Medical College of Cornell University
Cornell University (Ithaca) | Privacy Notice | Disclaimer