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Sizing Guide
Inside Circumference |
Sizes |
MM |
Inches |
Australian |
US |
40.15 |
1.58 |
C |
1 1/2 |
40.84 |
1.61 |
C 1/2 |
1 3/4 |
41.5 |
1.63 |
D |
2 |
42.13 |
1.66 |
D 1/2 |
2 1/4 |
42.76 |
1.68 |
E |
2 1/2 |
43.45 |
1.71 |
E 1/2 |
2 3/4 |
44.14 |
1.74 |
F |
3 |
44.45 |
1.75 |
F 1/2 |
3 1/8 |
44.77 |
1.76 |
F 3/4 |
3 1/4 |
45.11 |
1.77 |
G |
3 3/8 |
45.4 |
1.79 |
G 1/4 |
3 1/2 |
45.74 |
1.8 |
G 1/2 |
3 5/8 |
46.02 |
1.81 |
H |
3 3/4 |
46.68 |
1.84 |
H 1/2 |
4 |
47.25 |
1.86 |
I |
4 1/4 |
47.97 |
1.89 |
I 1/2 |
4 1/2 |
48.38 |
1.9 |
J |
4 5/8 |
48.79 |
1.92 |
J 1/4 |
4 3/4 |
49.32 |
1.94 |
J 1/2 |
5 |
49.64 |
1.95 |
K |
5 1/8 |
49.95 |
1.97 |
K 1/4 |
5 1/4 |
50.27 |
1.98 |
K 1/2 |
5 3/8 |
50.58 |
1.99 |
L |
5 1/2 |
51.21 |
2.02 |
L 1/4 |
5 3/4 |
51.55 |
2.03 |
L 1/2 |
5 7/8 |
51.87 |
2.04 |
M |
6 |
52.5 |
2.07 |
M 1/2 |
6 1/4 |
53.16 |
2.09 |
N |
6 1/2 |
53.82 |
2.12 |
N 1/2 |
6 3/4 |
54.51 |
2.15 |
O |
7 |
54.82 |
2.16 |
O 1/2 |
7 1/4 |
55.76 |
2.2 |
P |
7 1/2 |
56.45 |
2.22 |
P 1/2 |
7 3/4 |
57.15 |
2.25 |
Q |
8 |
57.65 |
2.27 |
Q 1/2 |
8 1/4 |
58.21 |
2.29 |
Q 3/4 |
8 1/2 |
58.47 |
2.3 |
R |
8 5/8 |
58.72 |
2.31 |
R 1/4 |
8 3/4 |
59.06 |
2.32 |
R 1/2 |
8 7/8 |
59.34 |
2.35 |
R 3/4 |
9 |
60 |
2.36 |
S |
9 1/8 |
60.38 |
2.38 |
S 1/4 |
9 1/4 |
60.66 |
2.39 |
S 1/2 |
9 3/8 |
60.98 |
2.4 |
S 3/4 |
9 1/2 |
61.29 |
2.41 |
T |
9 5/8 |
61.64 |
2.43 |
T 1/4 |
9 3/4 |
62.33 |
2.45 |
T 1/2 |
10 |
62.89 |
2.48 |
U |
10 1/4 |
63.46 |
2.5 |
U 1/2 |
10 1/2 |
63.84 |
2.51 |
V |
10 5/8 |
64.21 |
2.53 |
V 1/4 |
10 3/4 |
64.97 |
2.56 |
V 1/2 |
11 |
65.22 |
2.57 |
W |
11 1/8 |
65.5 |
2.58 |
W 1/4 |
11 1/4 |
65.78 |
2.59 |
W 1/2 |
11 3/8 |
66.22 |
2.61 |
W 3/4 |
11 1/2 |
66.54 |
2.62 |
X |
11 5/8 |
66.73 |
2.63 |
X 1/4 |
11 3/4 |
66.92 |
2.64 |
X 1/2 |
11 7/8 |
67.51 |
2.66 |
Y |
12 |
68.14 |
2.68 |
Y 1/2 |
12 1/4 |
68.77 |
2.71 |
Z |
12 1/2 |
69.43 |
2.73 |
Z +1/2 |
12 3/4 |
70.15 |
2.76 |
Z+1 |
13 |
71 |
2.8 |
Z+1.5 |
13.5 |
71.28 |
2.81 |
Z+2 |
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