Average arm span, by age

 

Age Girls Boys
cm cm
8 or younger 131.3 131.4
9 137.0 137.6
10 141.9 141.7
11 148.3 148.3
12 154.6 155.2
13 158.9 163.2
14 161.3 170.9
15 161.8 173.1
16 159.3 174.2
17 161.8 177.7
18 161.2 178.1
19 or older 164.2 167.1

 

Source: Census at School Canada, 2015-2016