average height for 9 year old boy
Average ht/wt: Average height and weight for a 9 year old by looking at a growth chart would be around 54inches and 62 lbs.But you have to be cautious about these numbers as people's body builds vary and weight may be lighter or heavier. Ideally, one should look at the bmi....Read more.hat is the average weight and height for 9 year old boy? 1. Average ht/wt: Average height and weight for a 9 year old by looking at a growth chart would be around 54inches and 62 lbs. But you have to be cautious about these numbers as people's body builds vary and weight may be lighter or heavier.