Hi my Name is Maria and I am here to tell you about What is the average weight for 13-year-olds Child. Do you know what the average weight for a 13-year-old child is? If you're wondering what the average weight for 13-year-olds is, you're not alone. As parents, we often worry about whether our children are developing properly and if they are within the healthy range for their age. Childhood obesity is a serious problem in many developed countries and the average weight for 13-year-olds has been steadily increasing over the past few decades. However, it's important to keep in mind that every child is different and that there is no "one size fits all" when it comes to weight. The best way to determine if your child is at a healthy weight is to talk to their doctor or a registered dietitian. They can assess your child's BMI (body mass index).