Average length of forearm, by age

Age (years) Girls  Boys 
cm cm
8 21.20 21.73
9 22.38 22.33
10 23.04 23.22
11 24.00 24.21
12 24.76 25.30
13 25.27 26.57
14 25.39 27.12
15 25.18 27.51
16 25.02 28.30
17 25.54 28.24
18 25.44 28.45
19 23.25 26.97