The boy's ideal weight varies with age and should be checked on a monthly basis up to 12 months, as a very low or very high weight may impair the boy's growth.
The ideal weight of the boy varies with the diet, his activity and even with the individual genetics and, can vary between two values, the minimum acceptable not to be too thin and the maximum so that he is not overweight, since both situations can cause health problems such as mental retardation or heart disease.
To know the relationship between the weight and the height of the boy from 2 years of age, use the following calculator:
Attention: Before this age, the ideal weight of the boy and the girl should be indicated by the pediatrician taking into account the table that is in the baby's book.
Boy's Weight-for-Age Chart
This table presents the age-appropriate values of the boy according to the World Health Organization, however, the most important thing is that the boy does not increase or decrease very rapidly in weight, increasing slowly with age.
Age | Weight | Age | Weight | Age | Pes |
1 month | 3.4 kg - 5 kg | 7 months | 6.8 kg - 9.2 kg | 2 years | 9.8 kg - 13.6 kg |
2 months | 4.4 kg - 6.2 kg | 8 months | 6.8 kg - 9.6 kg | 3 years | 11.5 kg - 16.2 kg |
3 months | 5 kg - 7.2 kg | 9 months | 7.2 kg - 9.8 kg | 4 years | 12.9 kg - 18.7 kg |
Four months | 5.6 kg - 7.8 kg | 10 months | 7.4 kg - 10.3 kg | 5 years | 11.5 kg - 16.2 kg |
Five months | 6100 g - 8400 g | 11 months | 7700 g - 11500 g | + 5 years | 14.3 kg - 21.1 kg |
6 months | 6400 g - 8800 g | 1 year | 7.9 kg - 10.8 kg | ----- | ------ |
Child weight percentiles curves
Generally, the percentile curve of the boy's weight for age is used by the pediatrician to check the evolution of the boy's weight as he grows, and more importantly, the boy maintains the weight throughout the same percentile. For example, a boy who is born with a 50th birth weight should remain in the 50th percentile while growing older.
In addition, to know the ideal weight of the boy after five years of age should be consulted other tables or percentile curves because beyond the age the height of the boy will also influence the proper weight.
To know if your baby is eating well read: How to know if your baby is eating well.