Sizing
Diameter |
Inside Circumference |
Sizes |
MM |
Inches |
MM |
Inches |
British & Australian |
US & Canada |
French & Russian |
German |
Japanese |
Swiss |
|
|
|
|
|
|
|
|
|
|
14.65 |
0.577 |
46.02 |
1.81 |
H |
3 3/4 |
46 1/2 |
- |
- |
6 1/2 |
|
|
|
|
|
|
|
|
|
|
15.04 |
0.592 |
47.25 |
1.86 |
I |
4 1/4 |
47 3/4 |
- |
- |
7 3/4 |
15.27 |
0.601 |
47.97 |
1.89 |
I 1/2 |
4 1/2 |
- |
15 1/4 |
8 |
- |
15.40 |
0.606 |
48.38 |
1.90 |
J |
4 5/8 |
49 |
15 1/2 |
- |
9 |
|
|
|
|
|
|
|
|
|
|
15.70 |
0.618 |
49.32 |
1.94 |
J 1/2 |
5 |
- |
15 3/4 |
9 |
- |
15.80 |
0.622 |
49.64 |
1.95 |
K |
5 1/8 |
50 |
- |
- |
10 |
|
|
|
|
|
|
|
|
|
|
16.00 |
0.630 |
50.27 |
1.98 |
K 1/2 |
5 3/8 |
- |
- |
10 |
- |
16.10 |
0.634 |
50.58 |
1.99 |
L |
5 1/2 |
51 3/4 |
16 |
- |
11 3/4 |
|
|
|
|
|
|
|
|
|
|
16.41 |
0.646 |
51.55 |
2.03 |
L 1/2 |
5 7/8 |
- |
- |
- |
- |
16.51 |
0.650 |
51.87 |
2.04 |
M |
6 |
52 3/4 |
16 1/2 |
12 |
12 3/4 |
16.71 |
0.658 |
52.50 |
2.07 |
M 1/2 |
6 1/4 |
- |
- |
- |
- |
16.92 |
0.666 |
53.16 |
2.09 |
N |
6 1/2 |
54 |
17 |
13 |
14 |
17.13 |
0.674 |
53.82 |
2.12 |
N 1/2 |
6 3/4 |
- |
- |
- |
- |
17.35 |
0.683 |
54.51 |
2.15 |
O |
7 |
55 1/4 |
17 1/4 |
14 |
15 1/4 |
17.45 |
0.687 |
54.82 |
2.16 |
O 1/2 |
7 1/4 |
- |
- |
- |
- |
17.75 |
0.699 |
55.76 |
2.20 |
P |
7 1/2 |
56 1/2 |
17 3/4 |
15 |
16 1/2 |
17.97 |
0.707 |
56.45 |
2.22 |
P 1/2 |
7 3/4 |
- |
- |
- |
- |
18.19 |
0.716 |
57.15 |
2.25 |
Q |
8 |
57 3/4 |
18 |
16 |
17 3/4 |
18.35 |
0.722 |
57.65 |
2.27 |
Q 1/2 |
8 1/4 |
- |
- |
- |
- |
|
|
|
|
|
|
|
|
|
|
18.61 |
0.733 |
58.47 |
2.30 |
R |
8 5/8 |
59 |
- |
- |
19 |
|
|
|
|
|
|
|
|
|
|
18.80 |
0.740 |
59.06 |
2.32 |
R 1/2 |
8 7/8 |
- |
- |
- |
- |
|
|
|
|
|
|
|
|
|
|
19.10 |
0.752 |
60.00 |
2.36 |
S |
9 1/8 |
60 1/4 |
- |
- |
20 1/4 |
|
|
|
|
|
|
|
|
|
|
19.31 |
0.760 |
60.66 |
2.39 |
S 1/2 |
9 3/8 |
- |
- |
- |
- |
|
|
|
|
|
|
|
|
|
|
19.51 |
0.768 |
61.29 |
2.41 |
T |
9 5/8 |
61 1/2 |
- |
- |
21 1/2 |
|
|
|
|
|
|
|
|
|
|
19.84 |
0.781 |
62.33 |
2.45 |
T 1/2 |
10 |
- |
20 |
20 |
- |
20.02 |
0.788 |
62.89 |
2.48 |
U |
10 1/4 |
62 3/4 |
- |
21 |
22 3/4 |
20.20 |
0.797 |
63.46 |
2.50 |
U 1/2 |
10 1/2 |
- |
20 1/4 |
22 |
- |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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