A series of equations are used for the Advanced Pediatric Life Support (APLS) to estimate a child's body weight from age. These may be updated over time to reflect population shifts.
Previous version
Age in Years
Body Weight in Kilograms
1 to 10 years
(2 * (age)) + 8 =
(2* ((age) + 4))
Updated version from 2011
Age in Years
Body Weight in Kilograms
< 1 year
((age in months) + 8) / 2
1 to 5 years
(2 * (age)) + 8
5 to 14 years
(3 * (age)) + 7
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