According to MDHealth, a 9-year-old boy’s typical height and weight in the United States are 52.5 inches and 63 pounds. It’s crucial to keep in mind that various factors, like development spurts that drive children to gain and lose weight quickly, might change this average. A BMI calculator or chart can also take height and weight into account.
The CDC states that the calculation of height and weight in relation to BMI differs for children compared to adults and varies with age. The CDC is unable to produce weight range charts for children because of how their weight fluctuates in relation to their growth in height.
Each month, the definition of a healthy weight for kids also changes. According to the CDC, BMI is merely a tool for comparing children of the same sex and age’s height and weight; it does not actually measure body fat.
Based on the heights of both parents, WebMD has a tool that allows users to estimate a child’s adult height. The best course of action if there are any worries regarding height or weight is to speak with a paediatrician. Additionally, there are numerous BMI estimators available online for kids.