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.
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
I am 12 years old I have a body waist of 22". Average would be 25"-30".
maybe around 80 or 90
I am a 13 year old boy, with waist 29'', about 74.5-75 cm. This is larger than some people, but not fat.
The average waist size for a 9 year old boy is between 24 and 29 inches. The average height and weight of a boy of the same age is 52.5 inches tall and 63 lbs.
The size of shorts that would fit a boy's 26 inch waist varies slightly with brand. On average this boy's size would be 9/10.
I am 13, 5'3'', weigh 104lbs and waist 29 inches. I don't know if I am fat or not, although I believe this isnt fat for our age
i am 5'4'', 105.4 lbs and waist 29 inches. i dont think that is fat, its pretty average.