Average length of forearm, by age

 Age Average length
  cm
8 or younger 24.1
9 22.1
10 23.1
11 23.9
12 24.7
13 25.6
14 26.6
15 26.5
16 26.5
17 27.2
18 27.7
19 or older 27.1

Source: Census at School Canada, 2019-2020