Normal weights of children with age

3 kg is the normal weight of  Newborns
2x birth weight  at 6 mos,
Add 5 kg  for every odd yr until 11 yrs
Add 10 kg thereafter

• 6 mos         - 6 kg  (2x birth wt at 3 mos)
• 1 yr              -10 kg (3x birth wt at 1 yr)
• 3 yrs            -15 kg (odd yrs, add 5 kg until 11 yrs)
• 5 yrs            -20 kg
• 7 yrs            -25 kg
• 9 yrs            -30 kg
• 11 yrs          -35 kg  (add 10 kg thereafter)
• 13 yrs          -45 kg
• 15 yrs          -55 kg
• 17 yrs          -65 kg