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 Method

Example

 1. Multiply his weight (in pounds) by 703

184 × 703 = (A) 129,352

 2. Multiply his height (in inches) by itself

69 × 69 = (B) 4,761

 3. Divide (A) by (B)

129,352 ÷ 4,761 = 27.2 (BMI Score)

*This calculation is inexact also because children’s body fatness changes as they mature. The interpretation of BMI depends on the child’s age. Additionally, girls and boys differ in their body fatness.

 

Last Updated
5/11/2013
Source
Caring for Your Teenager (Copyright © 2003 American Academy of Pediatrics)
The information contained on this Web site should not be used as a substitute for the medical care and advice of your pediatrician. There may be variations in treatment that your pediatrician may recommend based on individual facts and circumstances.