A 10-year-old girl weighs an average of 70.5 pounds. A 10-year-old girl’s average height is 54.5 inches. The average height and weight of a 10-year-old boy are identical to those of a 10-year-old girl.
Young children have fast weight gain and loss as a result of repeated development spurts. Children lose their baby fat as they mature, therefore dieting is not advised for young children and adolescents. A parent who is concerned about a kid’s weight should consult the child’s doctor to assess whether the child is overweight or underweight for her age and height.