We arrive at our ring sizes using the United States and Canada ring size standards. We do not advise that you should check the size of your ring by yourself using methods gotten from the internet. Visit a jewelry store in your locality to measure your ring size before placing an order with us. Our measuring machines have high accuracy, and this is evident in the accurate ring sizes that we deliver to our clients worldwide.
International Ring Size Conversion Chart
RING SIZE CONVERSION CHART. US SIZES, CANADA SIZES, UK SIZES, INCHES, MM
| Inside Diameter |
Inside Circumference |
Sizes |
| MM |
Inches |
MM |
Inches |
British & Australian |
US & Canada |
French & Russian |
German |
Japanese |
Swiss |
| 9.91 |
0.390 |
31.13 |
1.22 |
- |
0000 |
- |
- |
- |
- |
| 10.72 |
0.442 |
33.68 |
1.39 |
- |
00 |
- |
- |
- |
- |
| 11.53 |
0.454 |
36.22 |
1.43 |
- |
0 |
- |
- |
- |
- |
| 11.95 |
0.474 |
37.54 |
1.49 |
A |
1/2 |
- |
- |
- |
- |
| 12.18 |
0.482 |
38.26 |
1.51 |
A 1/2 |
3/4 |
- |
- |
- |
- |
| 12.37 |
0.487 |
38.86 |
1.53 |
B |
1 |
- |
- |
1 |
- |
| 12.60 |
0.496 |
39.58 |
1.56 |
B 1/2 |
1 1/4 |
- |
- |
- |
- |
| 12.78 |
0.503 |
40.15 |
1.58 |
C |
1 1/2 |
- |
- |
- |
- |
| 13.00 |
0.512 |
40.84 |
1.61 |
C 1/2 |
1 3/4 |
- |
- |
- |
- |
| 13.21 |
0.520 |
41.50 |
1.63 |
D |
2 |
41 1/2 |
13 1/2 |
2 |
1 1/2 |
| 13.41 |
0.528 |
42.13 |
1.66 |
D 1/2 |
2 1/4 |
- |
- |
- |
- |
| 13.61 |
0.536 |
42.76 |
1.68 |
E |
2 1/2 |
42 3/4 |
13 3/4 |
3 |
2 3/4 |
| 13.83 |
0.544 |
43.45 |
1.71 |
E 1/2 |
2 3/4 |
- |
- |
- |
- |
| 14.05 |
0.553 |
44.14 |
1.74 |
F |
3 |
44 |
14 |
4 |
4 |
| 14.15 |
0.557 |
44.45 |
1.75 |
F 1/2 |
3 1/8 |
- |
- |
- |
- |
| 14.25 |
0.561 |
44.77 |
1.76 |
F 3/4 |
3 1/4 |
- |
- |
- |
- |
| 14.36 |
0.565 |
45.11 |
1.77 |
G |
3 3/8 |
45 1/4 |
- |
5 |
5 1/4 |
| 14.45 |
0.569 |
45.40 |
1.79 |
G 1/4 |
3 1/2 |
- |
14 1/2 |
- |
- |
| 14.56 |
0.573 |
45.74 |
1.80 |
G 1/2 |
3 5/8 |
- |
- |
6 |
- |
| 14.65 |
0.577 |
46.02 |
1.81 |
H |
3 3/4 |
46 1/2 |
- |
- |
6 1/2 |
| 14.86 |
0.585 |
46.68 |
1.84 |
H 1/2 |
4 |
- |
15 |
7 |
- |
| 15.04 |
0.592 |
47.25 |
1.86 |
I |
4 1/4 |
47 3/4 |
- |
- |
7 3/4 |
| 15.27 |
0.601 |
47.97 |
1.89 |
I 1/2 |
4 1/2 |
- |
15 1/4 |
8 |
- |
| 15.40 |
0.606 |
48.38 |
1.90 |
J |
4 5/8 |
49 |
15 1/2 |
- |
9 |
| 15.53 |
0.611 |
48.79 |
1.92 |
J 1/4 |
4 3/4 |
- |
- |
- |
- |
| 15.70 |
0.618 |
49.32 |
1.94 |
J 1/2 |
5 |
- |
15 3/4 |
9 |
- |
| 15.80 |
0.622 |
49.64 |
1.95 |
K |
5 1/8 |
50 |
- |
- |
10 |
| 15.90 |
0.626 |
49.95 |
1.97 |
K 1/4 |
5 1/4 |
- |
- |
- |
- |
| 16.00 |
0.630 |
50.27 |
1.98 |
K 1/2 |
5 3/8 |
- |
- |
10 |
- |
| 16.10 |
0.634 |
50.58 |
1.99 |
L |
5 1/2 |
51 3/4 |
16 |
- |
11 3/4 |
| 16.30 |
0.642 |
51.21 |
2.02 |
L 1/4 |
5 3/4 |
- |
- |
- |
- |
| 16.41 |
0.646 |
51.55 |
2.03 |
L 1/2 |
5 7/8 |
- |
- |
- |
- |
| 16.51 |
0.650 |
51.87 |
2.04 |
M |
6 |
52 3/4 |
16 1/2 |
12 |
12 3/4 |
| 16.71 |
0.658 |
52.50 |
2.07 |
M 1/2 |
6 1/4 |
- |
- |
- |
- |
| 16.92 |
0.666 |
53.16 |
2.09 |
N |
6 1/2 |
54 |
17 |
13 |
14 |
| 17.13 |
0.674 |
53.82 |
2.12 |
N 1/2 |
6 3/4 |
- |
- |
- |
- |
| 17.35 |
0.683 |
54.51 |
2.15 |
O |
7 |
55 1/4 |
17 1/4 |
14 |
15 1/4 |
| 17.45 |
0.687 |
54.82 |
2.16 |
O 1/2 |
7 1/4 |
- |
- |
- |
- |
| 17.75 |
0.699 |
55.76 |
2.20 |
P |
7 1/2 |
56 1/2 |
17 3/4 |
15 |
16 1/2 |
| 17.97 |
0.707 |
56.45 |
2.22 |
P 1/2 |
7 3/4 |
- |
- |
- |
- |
| 18.19 |
0.716 |
57.15 |
2.25 |
Q |
8 |
57 3/4 |
18 |
16 |
17 3/4 |
| 18.35 |
0.722 |
57.65 |
2.27 |
Q 1/2 |
8 1/4 |
- |
- |
- |
- |
| 18.53 |
0.729 |
58.21 |
2.29 |
Q 3/4 |
8 1/2 |
- |
18 1/2 |
17 |
- |
| 18.61 |
0.733 |
58.47 |
2.30 |
R |
8 5/8 |
59 |
- |
- |
19 |
| 18.69 |
0.736 |
58.72 |
2.31 |
R 1/4 |
8 3/4 |
- |
- |
- |
- |
| 18.80 |
0.740 |
59.06 |
2.32 |
R 1/2 |
8 7/8 |
- |
- |
- |
- |
| 18.89 |
0.748 |
59.34 |
2.35 |
R 3/4 |
9 |
- |
19 |
18 |
- |
| 19.10 |
0.752 |
60.00 |
2.36 |
S |
9 1/8 |
60 1/4 |
- |
- |
20 1/4 |
| 19.22 |
0.757 |
60.38 |
2.38 |
S 1/4 |
9 1/4 |
- |
- |
- |
- |
| 19.31 |
0.760 |
60.66 |
2.39 |
S 1/2 |
9 3/8 |
- |
- |
- |
- |
| 19.41 |
0.764 |
60.98 |
2.40 |
S 3/4 |
9 1/2 |
- |
19 1/2 |
19 |
- |
| 19.51 |
0.768 |
61.29 |
2.41 |
T |
9 5/8 |
61 1/2 |
- |
- |
21 1/2 |
| 19.62 |
0.772 |
61.64 |
2.43 |
T 1/4 |
9 3/4 |
- |
- |
- |
- |
| 19.84 |
0.781 |
62.33 |
2.45 |
T 1/2 |
10 |
- |
20 |
20 |
- |
| 20.02 |
0.788 |
62.89 |
2.48 |
U |
10 1/4 |
62 3/4 |
- |
21 |
22 3/4 |
| 20.20 |
0.797 |
63.46 |
2.50 |
U 1/2 |
10 1/2 |
- |
20 1/4 |
22 |
- |
| 20.32 |
0.800 |
63.84 |
2.51 |
V |
10 5/8 |
63 |
- |
- |
23 3/4 |
| 20.44 |
0.805 |
64.21 |
2.53 |
V 1/4 |
10 3/4 |
- |
- |
- |
- |
| 20.68 |
0.814 |
64.97 |
2.56 |
V 1/2 |
11 |
- |
20 3/4 |
23 |
- |
| 20.76 |
0.817 |
65.22 |
2.57 |
W |
11 1/8 |
65 |
- |
- |
25 |
| 20.85 |
0.821 |
65.50 |
2.58 |
W 1/4 |
11 1/4 |
- |
- |
- |
- |
| 20.94 |
0.824 |
65.78 |
2.59 |
W 1/2 |
11 3/8 |
- |
- |
- |
- |
| 21.08 |
0.830 |
66.22 |
2.61 |
W 3/4 |
11 1/2 |
- |
21 |
24 |
- |
| 21.18 |
0.834 |
66.54 |
2.62 |
X |
11 5/8 |
66 1/4 |
- |
- |
26 1/4 |
| 21.24 |
0.836 |
66.73 |
2.63 |
X 1/4 |
11 3/4 |
- |
- |
- |
- |
| 21.30 |
0.839 |
66.92 |
2.64 |
X 1/2 |
11 7/8 |
- |
- |
- |
- |
| 21.49 |
0.846 |
67.51 |
2.66 |
Y |
12 |
67 1/2 |
21 1/4 |
25 |
27 1/2 |
| 21.69 |
0.854 |
68.14 |
2.68 |
Y 1/2 |
12 1/4 |
- |
- |
- |
- |
| 21.89 |
0.862 |
68.77 |
2.71 |
Z |
12 1/2 |
68 3/4 |
21 3/4 |
26 |
28 3/4 |
| 22.10 |
0.870 |
69.43 |
2.73 |
Z +1/2 |
12 3/4 |
- |
- |
- |
- |
| 22.33 |
0.879 |
70.15 |
2.76 |
Z+1 |
13 |
- |
22 |
27 |
- |
| 22.60 |
0.890 |
71.00 |
2.80 |
Z+1.5 |
13.5 |
- |
- |
- |
- |
| 22.69 |
0.893 |
71.28 |
2.81 |
Z+2 |
- |
- |
- |
- |
- |
| 22.92 |
0.902 |
72.00 |
2.83 |
Z+2.5 |
- |
- |
- |
- |
- |
| 23.06 |
0.908 |
72.45 |
2.85 |
Z+3 |
- |
- |
- |
- |
- |
| 23.24 |
0.915 |
73.01 |
2.87 |
Z+3.5 |
- |
- |
- |
- |
- |
| 23.47 |
0.924 |
73.73 |
2.90 |
Z+4 |
- |
- |
- |
- |
- |
| 23.55 |
0.927 |
73.98 |
2.91 |
Z+4.5 |
- |
- |
- |
- |
- |
| 23.87 |
0.940 |
74.99 |
2.95 |
Z+5 |
- |
- |
- |
- |
- |
| 24.27 |
0.956 |
76.25 |
3.00 |
Z+6 |
- |
- |
- |
- |
- |
|
Check out the steps below to determine the size of your ring:
- Take a string piece and wrap it around your finger's base.
- Mark the string, with a point where the end meets, using a pen.
- Measure the string with the help of a ruler.
- For determining your ring size, look at the chart below to find your ring size by choosing the closest measurement.
How to Achieve Best Results?
- Allow adequate area for your knuckle to fit.
- Keep in mind that various fingers on the same and opposite hands may have different sizes.
- Take a measurement of the finger where the ring will be worn.
- Take your finger measurement at the end of the day, when it is most likely to be the longest.
Order a size up (larger) if you are in-between sizes. If your finger is cold or hot, make sure it is at room temperature. Take two different measurements and choose a size in the middle of your knuckle that is substantially larger than your finger's base. A ring should fit perfectly over your knuckle but must not be too loose; otherwise, it will keep moving around your finger.
More information about how to measure your ring size, find in our article.
