The Rule of Fives calculator computes the percent of a Body Surface Area that is burned based on the Rule of Fives often used for obese patients.
INSTRUCTIONS: Enter the following:
Percent BSA: The calculator returns the percent of the burned Body Surface Area.
Related Calculators:
The Rule of Fives can be used to approximate the percent of a patient that is burned. It applies a percent of Body Surface Area, and differs from the Wallace Rule of Nines and often used for obese patients. It applies a larger portion of the body surface area to the trunk and legs as follows:
Body Surface Area (BSA) is the measured or calculated surface area of a human body frequently used in physiology and medicine. For many clinical purposes BSA is a better indicator of metabolic mass than body weight because it is less affected by abnormal adipose mass. Estimation of BSA is simpler than many measures of volume.
Age Range | Male | Female |
---|---|---|
Neonate | 0.243 m² | 0.234 m² |
2 years old | 0.563 m² | 0.54 m² |
5 years old | 0.787 m² | 0.771 m² |
10 years old | 1.236 m² | 1.245 m² |
13 years old | 1.603 m² | 1.55 m² |
18 years old | 1.98 m² | 1.726 m² |
20 to 79 years old | 2.06 m² | 1.83 m² |
80 and above | 1.92 m² | 1.638 m² |
BSA Calculators vs Inputs | |||
Method | Height | Weight | Gender |
Mosteller | x | x | |
Gehan and George | x | x | |
Boyd | x | x | |
DuBois | x | x | |
Haycock | x | x | |
Fujimoto | x | x | |
Takahira | x | x | |
Schlick | x | x | x |
Costeff | x | ||
Wang Hihara | x | x |