Average wrist circumference, by age


Age (years)	Girls	Boys
	mm
8	133.2	143.4
9	140.7	144.2
10	144.5	148.3
11	148.5	152.1
12	151.0	158.0
13	151.6	161.7
14	152.2	162.9
15	152.0	166.8
16	155.8	168.8
17	152.2	170.0
18	150.0	170.4
19	144.0	167.8
Source: Statistics Canada, Census at School, 2009/2010.