Ring Size Chart
| Inside Diameter MM |
Inside Diameter Inches |
USA |
UK |
France |
Italy |
China |
| 15 mm |
0.59 |
4 |
H |
46.8 |
6,5 |
7 |
| 15.3 mm |
0.60 |
4.5 |
I |
48 |
8 |
8 |
| 15.6 mm |
0.62 |
5 |
J |
49.3 |
9,5 |
9 |
| 16.2 mm |
0.63 |
5.5 |
K |
50.6 |
10,5 |
10 |
| 16.6 mm |
0.65 |
6 |
L |
51.9 |
12 |
11 |
| 16.9 mm |
0.67 |
6.5 |
M |
53.1 |
13,5 |
13 |
| 17.2 mm |
0.68 |
7 |
N |
54.4 |
14,5 |
14 |
| 17.8 mm |
0.70 |
7.5 |
O |
55.7 |
16 |
15 |
| 18.1 mm |
0.71 |
8 |
P |
57 |
17 |
16 |
| 18.5 mm |
0.73 |
8.5 |
Q |
58.3 |
18,5 |
17 |
| 19.1 mm |
0.75 |
9 |
R |
59.5 |
20 |
18 |
| 19.4 mm |
0.76 |
9.5 |
S |
60.8 |
21 |
19 |
| 19.7 mm |
0.78 |
10 |
T |
62.1 |
22,5 |
20 |
| 20.4 mm |
0.79 |
10.5 |
U |
63.4 |
23,5 |
22 |
| 20.7 mm |
0.81 |
11 |
V |
64.6 |
25 |
23 |
| 21.0 mm |
0.83 |
11.5 |
W |
65.9 |
26 |
24 |
| 21.6 mm |
0.84 |
12 |
X |
67.2 |
27,5 |
25 |
| 22.0 mm |
0.86 |
12.5 |
Y |
68.5 |
29 |
26 |
| 22.3 mm |
0.87 |
13 |
Z |
69.7 |
30 |
27 |
| 22.9 mm |
0.89 |
13.5 |
Z+2 |
71 |
32 |
- |
| 23.2 mm |
0.91 |
14 |
Z+3 |
72.3 |
33 |
- |
| 23.6 mm |
0.92 |
14.5 |
Z+4 |
73.6 |
34,5 |
- |
| 24.0 mm |
0.94 |
15 |
Z+5 |
74.8 |
35 |
- |
