How much should a 10-year-old kid weight?

While a 10-year-old boy usually weighs between 53 to 109 pounds, girls of the same age often weigh between 53 to 113 pounds. The recommended range for BMI considers these weight differences. A 10-year-old boy often has a BMI between 14 and 20, whereas a girl of the same age is expected to measure from 14 to 21.