Average length of forearm, by age

Age	Girls	Boys
	cm	cm
8 or younger	21.5	20.8
9	22.0	22.1
10	22.6	23.2
11	23.7	24.0
12	24.7	25.0
13	25.3	26.4
14	25.4	27.3
15	25.3	27.5
16	24.9	28.3
17	25.8	28.5
18	26.0	28.2
19 or older	25.7	28.3

Source: Census at School Canada, 2016-2017