Sizing Charts
Inside Diameter |
Inside Circumference |
US, Canada and Mexico |
UK, Ireland, Australia, and New Zealand |
Italy, Spain, Netherlands & Switzerland |
France |
Germany |
in |
mm |
in |
mm |
|
|
|
|
|
0.586 |
14.88 |
14.88 |
46.8 |
4 |
H |
6.75 |
461/2
|
15 |
0.602 |
15.29 |
1.89 |
48 |
41/2
|
I |
8 |
473/4
|
151/4
|
0.618 |
15.7 |
1.94 |
49.3 |
5 |
J1/2
|
9.25 |
49 |
153/4
|
0.634 |
16.1 |
1.99 |
50.6 |
51/2
|
K1/2
|
10.5 |
501/4
|
16 |
0.65 |
16.51 |
2.04 |
51.9 |
6 |
L1/2
|
11.75 |
523/4
|
161/2
|
0.666 |
16.92 |
2.09 |
53.1 |
61/2
|
M1/2
|
13.25 |
54 |
17 |
0.682 |
17.32 |
2.14 |
54.4 |
7 |
N1/2
|
14.5 |
551/4
|
171/4
|
0.714 |
18.14 |
2.24 |
2.24 |
8 |
P1/2
|
17 |
573/4
|
18 |
0.73 |
18.54 |
2.29 |
58.3 |
81/2
|
Q1/2
|
18.25 |
581/2
|
181/2
|
0.746 |
18.95 |
2.34 |
59.5 |
9 |
R1/2
|
19.5 |
59 |
19 |
0.762 |
19.35 |
2.39 |
60.8 |
91/2
|
S1/2
|
20.75 |
601/4
|
191/2
|
0.778 |
19.76 |
2.44 |
62.1 |
10 |
T1/2
|
22 |
611/2
|
20 |
0.794 |
20.17 |
2.49 |
63.4 |
101/2
|
U1/2
|
23.25 |
623/4
|
201/4
|
0.81 |
20.57 |
2.54 |
64.6 |
11 |
V1/2
|
24.75 |
64 |
203/4
|
0.826 |
20.98 |
2.59 |
65.9 |
111/2
|
W1/2
|
26 |
651/4
|
21 |
0.842 |
21.39 |
2.65 |
67.2 |
12 |
X1/2
|
27.25 |
671/2
|
211/4
|