|
Inner Diameter (mm) |
Circumference (mm) |
US & Canada |
EU (ISO) |
Australia / NZ |
Japan |
China |
|---|---|---|---|---|---|---|
|
14.01 |
44.0 |
3 |
44 |
F |
4 |
4 |
|
14.33 |
45.0 |
3.5 |
45 |
G |
5 |
5 |
|
14.65 |
46.0 |
3.75 |
46 |
G½ |
6 |
6 |
|
14.97 |
47.0 |
4 |
47 |
H½ |
7 |
7 |
|
15.29 |
48.0 |
4.5 |
48 |
I½ |
8 |
8 |
|
15.61 |
49.0 |
5 |
49 |
J½ |
9 |
9 |
|
15.92 |
50.0 |
5.5 |
50 |
K½ |
10 |
10 |
|
16.24 |
51.0 |
5.75 |
51 |
L½ |
11 |
11 |
|
16.56 |
52.0 |
6 |
52 |
M |
12 |
12 |
|
16.88 |
53.0 |
6.5 |
53 |
N |
13 |
13 |
|
17.20 |
54.0 |
7 |
54 |
O |
14 |
14 |
|
17.52 |
55.0 |
7.25 |
55 |
P |
15 |
15 |
|
17.83 |
56.0 |
7.5 |
56 |
P½ |
16 |
16 |
|
18.15 |
57.0 |
8 |
57 |
Q½ |
17 |
17 |
|
18.47 |
58.0 |
8.5 |
58 |
R½ |
18 |
18 |
|
18.79 |
59.0 |
8.75 |
59 |
S |
19 |
19 |
|
19.10 |
60.0 |
9 |
60 |
S½ |
20 |
20 |
|
19.42 |
61.0 |
9.5 |
61 |
T½ |
21 |
21 |
|
19.74 |
62.0 |
10 |
62 |
U½ |
22 |
22 |
|
20.06 |
63.0 |
10.5 |
63 |
V½ |
23 |
23 |
|
20.38 |
64.0 |
10.75 |
64 |
W |
24 |
24 |
|
20.70 |
65.0 |
11 |
65 |
W½ |
25 |
25 |
|
21.01 |
66.0 |
11.5 |
66 |
X½ |
26 |
26 |
|
21.33 |
67.0 |
11.75 |
67 |
Y½ |
27 |
27 |
|
21.65 |
68.0 |
12 |
68 |
Z |
28 |
28 |
|
21.97 |
69.0 |
12.5 |
69 |
Z+1 |
29 |
29 |