It depends on your weight and height and other proportions.
When I was twelve, I had just started going through puberty and remember that my waist was about 20", because of the outfit that I wore for my Ballet performance. I am 15 now and my waist is 22".
The average for a 12 yearold is quite high, but for a healthy girl it is 20"-26".
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
A five-year old girl would have an average waist size of 20-22 inches, depending on her height, diet and ethnicity. [From experience]
30 in
24-29
about a mile.
35.5
18 inches
I am 12 years old I have a body waist of 22". Average would be 25"-30".
32
24-29
25 inches