Average wrist circumference, by age

 Age All students
  mm
8 or younger 141.5
9 143.5
10 148.9
11 149.0
12 153.6
13 152.2
14 153.8
15 159.0
16 150.6
17 157.5
18 158.0
19 or older 167.7

Source: Census at School Canada, 2020-2021