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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

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