You can get an esitmate of how "average" you are compared to teen peers.
18+ (Adult)
16-18 (Older Teen)
14-16 (Mid Teen)
12-14 (Preteen / Teen)
>12 (Kid / Young Child)
8"+
7.5"-7.11"
7.0"-7.4"
6.5"-6.11"
6.0"-6.4"
5.5"-5.11"
5.0"-5.4"
4.5"-4.11"
4.0"-4.4"
>3.11" (Less than 3.11")
6.0"+ (Greater than 6.0")
5.0"-5.11"
4.0"-4.11"
3.0"-3.11"
2.0"-2.11"
>2.0" (Less than 2.0")