Average ratio of certain body measurements, by age

Age (years) Arm span / height Foot/forearm Hand/height
Girls Boys Girls Boys Girls Boys
ratio
8 0.98 0.97 0.96 1.01 0.10 0.11
9 0.98 0.99 0.95 0.98 0.10 0.11
10 0.99 1.00 0.97 0.98 0.10 0.11
11 0.99 1.00 0.97 0.99 0.10 0.11
12 0.99 1.00 0.95 0.98 0.10 0.11
13 0.99 1.00 0.95 0.98 0.10 0.11
14 0.99 1.00 0.94 0.98 0.11 0.11
15 0.99 1.00 0.93 0.96 0.11 0.11
16 0.99 1.00 0.93 0.95 0.11 0.11
17 0.99 1.00 0.93 0.96 0.11 0.11
18 0.99 1.00 0.95 0.95 0.11 0.11
19 0.97 1.01 0.88 0.95 0.10 0.11
Notes: The ratio is the proportion between two numbers (for example, between the lengths of the foot and the forearm). The ratio is obtained by dividing the first element by the second.
Source: Statistics Canada, Census at School, 2006/2007.