How much should a 9 year old way?

There is no one answer to this question, as the recommended weight for a 9 year old can vary depending on a number of factors, including the child's height, gender, and activity level. However, according to the Centers for Disease Control and Prevention (CDC), the average weight for a 9 year old boy is 64.2 pounds, while the average weight for a 9 year old girl is 60.7 pounds. It's important to note that these are just averages, and that there can be a wide range of normal weights for children of this age. If you are concerned about your child's weight, it is always a good idea to talk to your child's doctor.