Average length of forearm, by age

 Age Average length
  cm
8 or younger 20.4
9 22.4
10 23.3
11 23.9
12 25.3
13 26.0
14 26.1
15 26.7
16 26.8
17 28.0
18 28.3
19 or older 27.3

Source: Census at School Canada, 2021-2022