Average length of forearm, by age

 

Age Girls Boys
cm cm
8 21.75 20.50
9 22.10 22.92
10 23.37 23.54
11 23.86 24.03
12 24.72 25.27
13 25.33 26.49
14 25.37 27.11
15 25.27 27.34
16 25.28 28.11
17 25.50 28.41
18 25.25 28.38
19 27.07 28.43

Source: Census at School Canada, 2013-2014