|
SIZE
|
UK/ Ireland/ Australia size
|
France size
|
Germany size
|
Switzerland size
|
Diam. inch
|
Diam. mm
|
Circum. mm
|
|
USA/ Canada size
|
6
|
M
|
52 3/4
|
16 1/2
|
12 3/4
|
0.650
|
16.51
|
51.5
|
|
7
|
O
|
55 1/4
|
17 1/4
|
15 1/4
|
0.683
|
17.35
|
54.0
|
|
8
|
Q
|
57 3/4
|
18
|
17 3/4
|
0.716
|
18.19
|
56.6
|
|
9
|
S
|
--
|
19
|
--
|
0.748
|
18.89
|
59.1
|
|
10
|
T 1/2
|
--
|
20
|
--
|
0.781
|
19.84
|
61.6
|
|
|