A typical 9-month-old baby's weight varies by gender but generally falls within these ranges:
- For boys, the average weight is about 8.2 to 10 kg (18 to 22 lbs), with a common midpoint around 8.9 kg (19 lb 10 oz)
- For girls, the average weight is approximately 7.3 to 9.4 kg (16 to 21 lbs), with a typical average near 8.2 kg (18 lb 2 oz)
More specifically, according to the World Health Organization and various growth charts:
- Boys at 9 months typically weigh around 8.9 kg (19 lb 10 oz)
- Girls at 9 months typically weigh around 8.2 kg (18 lb 2 oz)
Weight can vary widely among healthy babies, so as long as a baby is growing steadily along their growth curve and the pediatrician has no concerns, their weight is considered normal. A 9-month-old weighing significantly below these ranges, such as around 7.5 kg, may warrant nutritional assessment but could still be within a healthy range depending on individual factors
. In summary, a 9-month-old baby should ideally weigh between about 7.3 to 10 kg, with boys generally heavier than girls at this age
