The ideal weight for a 13-year-old girl can vary depending on factors such as height, body type, and individual differences. According to the Centers for Disease Control and Prevention (CDC), most 13-year-old girls weigh between 34.4 kg and 54.3 kg
. However, the average weight for a 13-year-old girl is around 76 to 148 pounds (34.5 to 67 kg)
. The 50th percentile for weight in this group is around 101 lb (45.81 kg)
. It is essential to remember that everyone is different, and there isn't a one-size-fits-all approach to weight. Focusing on physical activity and nutrition habits leading to a healthy lifestyle is more important than trying to achieve a specific weight goal. If you have concerns about a 13-year-old girl's weight, it is recommended to consult with a doctor or nutritionist to ensure that any weight changes remain healthy and appropriate for the individual's growth and development.