Ring Size Guide
| Inside Diameter |
UK |
US |
Germany |
Spain |
France |
Italy |
Japan |
| 14 mm |
F |
3 |
44 (14.0) |
4 |
44 |
4 |
4 |
| 14.5 mm |
G |
3.5 |
N/A |
N/A |
N/A |
5,5 |
5 |
| 15 mm |
H |
4 |
47 (15.0) |
6,5 |
46.5 |
7 |
7 |
| 15.3 mm |
I |
4.5 |
48 (15.3) |
8 |
48 |
8 |
8 |
| 15.6 mm |
J |
5 |
49 (15.6) |
9,5 |
49.5 |
9 |
9 |
| 16.2 mm |
K |
5.5 |
51 (16.2) |
10,5 |
50.5 |
10 |
10 |
| 16.6 mm |
L |
6 |
52 (16.6) |
12 |
52 |
11 |
11 |
| 16.9 mm |
M |
6.5 |
53 (16.9) |
13,5 |
53 |
12,5 |
13 |
| 17.2 mm |
N |
7 |
54 (17.2) |
14,5 |
54.5 |
14 |
14 |
| 17.8 mm |
O |
7.5 |
56 (17.8) |
16 |
55.5 |
15 |
15 |
| 18.1 mm |
P |
8 |
57 (18.1) |
17 |
57 |
16 |
16 |
| 18.5 mm |
Q |
8.5 |
58 (18.5) |
18,5 |
58 |
17,5 |
17 |
| 19.1 mm |
R |
9 |
60 (19.1) |
20 |
59.5 |
19 |
18 |
| 19.4 mm |
S |
9.5 |
61 (19.4) |
21 |
61 |
20 |
19 |
| 19.7 mm |
T |
10 |
62 (19.7) |
22,5 |
62 |
21,5 |
20 |
| 20.4 mm |
U |
10.5 |
64 (20.4) |
23,5 |
63.5 |
23 |
22 |
| 20.7 mm |
V |
11 |
65 (20.7) |
25 |
64.5 |
24 |
23 |
| 21.0 mm |
W |
11.5 |
66 (21.0) |
26 |
66 |
25 |
24 |
| 21.6 mm |
X |
12 |
68 (21.6) |
27,5 |
67 |
26,5 |
25 |
| 22.0 mm |
Y |
12.5 |
69 (22.0) |
29 |
68.5 |
28 |
26 |
| 22.3 mm |
Z |
13 |
70 (22.3) |
30 |
69.5 |
28,5 |
27 |
| 22.9 mm |
Z+2 |
13.5 |
72 (22.9) |
32 |
71 |
32 |
N/A |
| 23.2 mm |
Z+3 |
14 |
73 (23.2) |
33 |
72.5 |
33 |
N/A |
| 23.6 mm |
Z+4 |
14.5 |
74 (23.6) |
34,5 |
73.5 |
N/A |
N/A |
| 24.0 mm |
Z+5 |
15 |
N/A |
35 |
75 |
35 |
N/A |
