The Centers for Disease Control and Prevention reports that the normal weight of a 13-year-old girl varies dramatically based on her growth curve and height, making it impossible to dictate a weight that is "normal" for every teen. Each child grows on his or her own growth curve; pediatricians use the curve to help evaluate the healthiness of a teen's weight.
Even if a 13-year-old girl reaches a weight that is high for her growth curve, this does not mean she is overweight. It is possible that a growth spurt is going to follow this increase in weight, making her new weight normal for her height.
A normal weight also varies based on the teen's body composition. A teen may weigh more than a peer due to having a large amount of muscle.Learn More
The average height for a 13-year-old boy in the USA is 61.5 inches, while the average height for a 13-year-old girl in the USA is 62 inches. Average heights vary between 13-year-old girls and boys partially because of the onset of puberty, which tends to begin earlier in females than in males.Full Answer >
The Centers for Disease Control and Prevention explains that healthy weight ranges cannot be defined specifically for teens because their weight fluctuates often according to their age, sex and height. The CDC advises that the best way to assess a teen's weight is to calculate the teen's body mass index.Full Answer >
The average weight for a 13-year-old girl or boy is 100 pounds, according to CDC growth charts. Statistically, girls average 101 pounds at age 13, while boys weigh 100 pounds. The normal weight range is 75 to 147 pounds for girls and 74.5 to 144 pounds for boys.Full Answer >
According to SFGate, a 13-year-old girl needs around 1,600 calories a day to maintain a healthy body weight. However, girls who are underweight often need additional calories from nutrient-dense foods, such as medical nutrition shakes, peanut butter or nuts.Full Answer >