This depends on the height and weight and the other measurements of the person. The average would be quite high, as it would include the measurements of overweight people. The ideal measurements for a healthy 15 year-old would be between 24" and 32", depending on other measurements.
Although, I am fifteen and have a 22" waist, 32" bust, 31" hips, a weight of 100 lbs and a height of 5"4.
The average waist size of a six year old girl is between 22.5 to 25 inches. The average waist size of a boy of the same age is between 23 and 25 inches.
The average waist size for an 11 year old is- Girl: 25-30 inches Boy: 26-31 inches
32
26”.
A five-year old girl would have an average waist size of 20-22 inches, depending on her height, diet and ethnicity. [From experience]
i have a 23-inch waist... :)
A boy is only a couple inches larger than a girls so ask the question "Adverage Waist Size for a 14 Year Old Girl" and you have your answer.
30 in
35.5
18 inches
24-29
about a mile.