International Ring Size Conversion Chart
We understand that getting the best size for your ring is important, especially because its being shipped internationally. All of our rings are made in Comfort Fit Sizing (click HERE to see Comfort Fit vs Standard Fit). To help you convert your size to our Comfort Fit Sizing, use the simple chart below. If you have any questions, please do not hesitate to contact us. And if for some reason your ring doesn't end up fitting, we're happy to process a simple and easy exchange for you using our 45-day Perfect Fit policy.
| Inside |
Inside |
Inside |
Inside |
Number Sizes |
Comfort Fit |
Letter Sizes |
|
| Diameter |
Diameter |
Circumference |
Circumference |
US/Canada |
US/Canada |
British |
Swiss |
| (inches) |
(mm) |
(inches) |
(mm) |
Standard |
Comfort |
Irish |
|
| |
|
|
|
|
|
Australian |
|
| |
|
|
|
|
|
|
|
| 0.458 |
11.6 |
1.438 |
36.5 |
0 |
|
|
|
| 0.466 |
11.8 |
1.463 |
37.2 |
1/4 |
|
|
|
| 0.474 |
12.0 |
1.488 |
37.8 |
1/2 |
|
A |
|
| 0.482 |
12.2 |
1.513 |
38.4 |
3/4 |
|
A 1/2 |
|
| 0.490 |
12.4 |
1.539 |
39.1 |
1 |
1/2 |
B |
|
| 0.498 |
12.6 |
1.564 |
39.7 |
1 1/4 |
|
B 1/2 |
|
| 0.506 |
12.9 |
1.589 |
40.4 |
1 1/2 |
1 |
C |
|
| 0.514 |
13.1 |
1.614 |
41.0 |
1 3/4 |
|
C 1/2 |
|
| 0.522 |
13.3 |
1.639 |
41.6 |
2 |
1 1/2 |
D |
1.50 |
| 0.530 |
13.5 |
1.664 |
42.3 |
2 1/4 |
|
D 1/2 |
|
| 0.538 |
13.7 |
1.689 |
42.9 |
2 1/2 |
2 |
E |
2.75 |
| 0.546 |
13.9 |
1.714 |
43.5 |
2 3/4 |
|
E 1/2 |
|
| 0.554 |
14.1 |
1.740 |
44.2 |
3 |
2 1/2 |
F |
4.00 |
| 0.562 |
14.3 |
1.765 |
44.8 |
3 1/4 |
|
F 1/2 |
5.25 |
| 0.570 |
14.5 |
1.790 |
45.5 |
3 1/2 |
3 |
G |
|
| 0.578 |
14.7 |
1.815 |
46.1 |
3 3/4 |
|
G 1/2 |
6.50 |
| 0.586 |
14.9 |
1.840 |
46.7 |
4 |
3 1/2 |
H |
|
| 0.594 |
15.1 |
1.865 |
47.4 |
4 1/4 |
|
H 1/2 |
7.75 |
| 0.602 |
15.3 |
1.890 |
48.0 |
4 1/2 |
4 |
I |
|
| 0.610 |
15.5 |
1.915 |
48.7 |
4 3/4 |
|
J |
9.00 |
| 0.618 |
15.7 |
1.941 |
49.3 |
5 |
4 1/2 |
J 1/2 |
|
| 0.626 |
15.9 |
1.966 |
49.9 |
5 1/4 |
|
K |
10.00 |
| 0.634 |
16.1 |
1.991 |
50.6 |
5 1/2 |
5 |
K 1/2 |
|
| 0.642 |
16.3 |
2.016 |
51.2 |
5 3/4 |
|
L |
11.75 |
| 0.650 |
16.5 |
2.041 |
51.8 |
6 |
5 1/2 |
L 1/2 |
12.75 |
| 0.658 |
16.7 |
2.066 |
52.5 |
6 1/4 |
|
M |
|
| 0.666 |
16.9 |
2.091 |
53.1 |
6 1/2 |
6 |
M 1/2 |
14.00 |
| 0.674 |
17.1 |
2.116 |
53.8 |
6 3/4 |
|
N |
|
| 0.682 |
17.3 |
2.141 |
54.4 |
7 |
6 1/2 |
N 1/2 |
15.25 |
| 0.690 |
17.5 |
2.167 |
55.0 |
7 1/4 |
|
O |
|
| 0.698 |
17.7 |
2.192 |
55.7 |
7 1/2 |
7 |
O 1/2 |
16.50 |
| 0.706 |
17.9 |
2.217 |
56.3 |
7 3/4 |
|
P |
|
| 0.714 |
18.1 |
2.242 |
56.9 |
8 |
7 1/2 |
P 1/2 |
17.75 |
| 0.722 |
18.3 |
2.267 |
57.6 |
8 1/4 |
|
Q |
|
| 0.730 |
18.5 |
2.292 |
58.2 |
8 1/2 |
8 |
Q 1/2 |
|
| 0.738 |
18.7 |
2.317 |
58.9 |
8 3/4 |
|
R |
19 |
| 0.746 |
18.9 |
2.342 |
59.5 |
9 |
8 1/2 |
R 1/2 |
|
| 0.754 |
19.2 |
2.368 |
60.1 |
9 1/4 |
|
S |
20.25 |
| 0.762 |
19.4 |
2.393 |
60.8 |
9 1/2 |
9 |
S 1/2 |
|
| 0.770 |
19.6 |
2.418 |
61.4 |
9 3/4 |
|
T |
21.5 |
| 0.778 |
19.8 |
2.443 |
62.1 |
10 |
9 1/2 |
T 1/2 |
|
| 0.786 |
20.0 |
2.468 |
62.7 |
10 1/4 |
|
U |
|
| 0.794 |
20.2 |
2.493 |
63.3 |
10 1/2 |
10 |
U 1/2 |
22.75 |
| 0.802 |
20.4 |
2.518 |
64.0 |
10 3/4 |
|
V |
|
| 0.810 |
20.6 |
2.543 |
64.6 |
11 |
10 1/2 |
V 1/2 |
|
| 0.818 |
20.8 |
2.569 |
65.2 |
11 1/4 |
|
W |
25 |
| 0.826 |
21.0 |
2.594 |
65.9 |
11 1/2 |
11 |
W 1/2 |
|
| 0.834 |
21.2 |
2.619 |
66.5 |
11 3/4 |
|
X |
|
| 0.842 |
21.4 |
2.644 |
67.2 |
12 |
11 1/2 |
X 1/2 |
27.50 |
| 0.850 |
21.6 |
2.669 |
67.8 |
12 1/4 |
|
Y |
|
| 0.858 |
21.8 |
2.694 |
68.4 |
12 1/2 |
12 |
Z |
28.75 |
| 0.866 |
22.0 |
2.719 |
69.1 |
12 3/4 |
|
Z 1/2 |
|
| 0.874 |
22.2 |
2.744 |
69.7 |
13 |
12 1/2 |
|
|
| 0.882 |
22.4 |
2.769 |
70.3 |
13 1/4 |
|
Z1 |
|
| 0.890 |
22.6 |
2.795 |
71.0 |
13 1/2 |
13 |
|
|
| 0.898 |
22.8 |
2.820 |
71.6 |
13 3/4 |
|
Z2 |
|
| 0.906 |
23.0 |
2.845 |
72.3 |
14 |
13 1/2 |
Z3 |
|
| 0.914 |
23.2 |
2.870 |
72.9 |
14 1/4 |
|
|
|
| 0.922 |
23.4 |
2.895 |
73.5 |
14 1/2 |
14 |
Z4 |
|
| 0.930 |
23.6 |
2.920 |
74.2 |
14 3/4 |
|
|
|
| 0.938 |
23.8 |
2.945 |
74.8 |
15 |
14 1/2 |
|
|
| 0.946 |
24.0 |
2.970 |
75.4 |
15 1/4 |
|
|
|
| 0.954 |
24.2 |
2.996 |
76.1 |
15 1/2 |
15 |
|
|
| 0.962 |
24.4 |
3.021 |
76.7 |
15 3/4 |
|
|
|
| 0.970 |
24.6 |
3.046 |
77.4 |
16 |
15 1/2 |
|
|
| 0.970 |
24.6 |
3.046 |
77.4 |
16 |
|
|
|
|
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