We will send you an email to reset your password.
International Ring Size Conversion Chart
International Ring Size Conversion Chart
|
Circumference (mm)* |
Diameter (mm)* |
USA |
UK |
|
44.2 |
14.1 |
3 |
F |
|
44.8 |
14.3 |
F-1/2 |
|
|
45.5 |
14.5 |
3-1/2 |
G |
|
46.1 |
14.7 |
G-1/2 |
|
|
46.8 |
14.9 |
4 |
H |
|
47.4 |
15.1 |
H-1/2 |
|
|
48.0 |
15.3 |
4-1/2 |
I |
|
48.7 |
15.5 |
J |
|
|
49.3 |
15.7 |
5 |
J-1/2 |
|
50.0 |
15.9 |
K |
|
|
50.6 |
16.1 |
5-1/2 |
K-1/2 |
|
51.2 |
16.3 |
L |
|
|
51.9 |
16.5 |
6 |
L-1/2 |
|
52.5 |
16.7 |
M |
|
|
53.1 |
16.9 |
6-1/2 |
M-1/2 |
|
53.8 |
17.1 |
N |
|
|
54.4 |
17.3 |
7 |
N-1/2 |
|
55.1 |
17.5 |
O |
|
|
55.7 |
17.7 |
7-1/2 |
O-1/2 |
|
56.3 |
17.9 |
P |
|
|
57.0 |
18.1 |
8 |
P-1/2 |
|
57.6 |
18.3 |
Q |
|
|
58.3 |
18.5 |
8-1/2 |
Q-1/2 |
|
58.9 |
18.8 |
R |
|
|
59.5 |
19.0 |
9 |
R-1/2 |
|
60.2 |
19.2 |
S |
|
|
60.8 |
19.4 |
9-1/2 |
S-1/2 |
|
61.4 |
19.6 |
T |
|
|
62.1 |
19.8 |
10 |
T-1/2 |
|
62.7 |
20.0 |
U |
|
|
63.4 |
20.2 |
10-1/2 |
U-1/2 |
|
64.0 |
20.4 |
V |
|
|
64.6 |
20.6 |
11 |
V-1/2 |
|
65.3 |
20.8 |
W |
|
|
65.9 |
21.0 |
11-1/2 |
W-1/2 |
|
66.6 |
21.2 |
X |
|
|
67.2 |
21.4 |
12 |
X-1/2 |
|
67.8 |
21.6 |
Y |
|
|
68.5 |
21.8 |
12-1/2 |
Z |
|
69.1 |
22.0 |
Z-1/2 |
|
|
69.7 |
22.2 |
13 |
|
|
70.4 |
22.4 |
Z + 1 |
|
|
71.0 |
22.6 |
13-1/2 |
* These are exact measurement conversions as per international standards (ISO) and can be used as indication of the different size versions. At GOLDBOX, we often round off the number into whole or with halves (0.5 or 1/2) when we express the ring sizes to eliminate minor size differences.
