This table should help when trying to convert different ring sizes.
The following information will show you how to measure your ring size to ensure the ring you purchase is the actual ring size necessary.
Here are our suggestions on how to measure yourself
1. Using a string or piece of paper complete a circle around the bottom of your finger.
2. Using a pen mark the string or paper at the circles connection point.
3. Measure the length of the string/paper from the top till the pen mark.
4. With this measurement refer to the table below to determine your ring size.
Please note: You need to take the knuckle into consideration when sizing. In some cases the bottom of your finger may be smaller than your knuckle. Also take into consideration your knuckle size when purchasing a ring with a wider band which should be sized 1 size larger.
When ordering a products, please take note of the following format
Size 11 (V½- 66.4mm)
The first value after the size number (in the example: 11) is the US system.
The second value, inside the brackets (in the example: V½) is the UK and Australian system.
The third value, inside the brackets (in the example: 66.4mm) is the universal metric system.
Table below is copied from Wikipedia
|
Conversion chart for ring sizes |
||||||||
|
Inside diameter |
Inside circumference |
Sizes |
||||||
|
(in) |
(mm) |
(in) |
(mm) |
United States |
||||
|
0.458 |
11.63 |
1.44 |
36.5 |
0 |
||||
|
0.466 |
11.84 |
1.46 |
37.2 |
¼ |
||||
|
0.474 |
12.04 |
1.49 |
37.8 |
½ |
A |
|||
|
0.482 |
12.24 |
1.51 |
38.5 |
¾ |
A½ |
|||
|
0.49 |
12.45 |
1.54 |
39.1 |
1 |
B |
1 |
||
|
0.498 |
12.65 |
1.56 |
39.7 |
1¼ |
B½ |
|||
|
0.506 |
12.85 |
1.59 |
40.4 |
1½ |
C |
0.5 |
||
|
0.514 |
13.06 |
1.61 |
41 |
1¾ |
C½ |
1 |
1 |
|
|
0.522 |
13.26 |
1.64 |
41.7 |
2 |
D |
2 |
2 |
1.75 |
|
0.53 |
13.46 |
1.67 |
42.3 |
2¼ |
D½ |
2.25 |
||
|
0.538 |
13.67 |
1.69 |
42.9 |
2½ |
E |
3 |
3 |
3 |
|
0.546 |
13.87 |
1.72 |
43.6 |
2¾ |
E½ |
4 |
3.5 |
|
|
0.554 |
14.07 |
1.74 |
44.2 |
3 |
F |
4 |
4.25 |
|
|
0.562 |
14.27 |
1.77 |
44.8 |
3¼ |
F½ |
5 |
5 |
4.75 |
|
0.57 |
14.48 |
1.79 |
45.5 |
3½ |
G |
5.5 |
||
|
0.578 |
14.68 |
1.82 |
46.1 |
3¾ |
G½ |
6 |
6 |
6 |
|
0.586 |
14.88 |
1.84 |
46.8 |
4 |
H |
7 |
6.75 |
|
|
0.594 |
15.09 |
1.87 |
47.4 |
4¼ |
H½ |
7 |
7.5 |
|
|
0.602 |
15.29 |
1.89 |
48 |
4½ |
I |
8 |
8 |
8 |
|
0.61 |
15.49 |
1.92 |
48.7 |
4¾ |
J |
9 |
8.75 |
|
|
0.618 |
15.7 |
1.94 |
49.3 |
5 |
J½ |
9 |
9.25 |
|
|
0.626 |
15.9 |
1.97 |
50 |
5¼ |
K |
10 |
10 |
|
|
0.634 |
16.1 |
1.99 |
50.6 |
5½ |
K½ |
10 |
10.5 |
|
|
0.642 |
16.31 |
2.02 |
51.2 |
5¾ |
L |
11 |
11.25 |
|
|
0.65 |
16.51 |
2.04 |
51.9 |
6 |
L½ |
11 |
12 |
11.75 |
|
0.658 |
16.71 |
2.07 |
52.5 |
6¼ |
M |
12 |
12.5 |
|
|
0.666 |
16.92 |
2.09 |
53.1 |
6½ |
M½ |
13 |
13 |
13.25 |
|
0.674 |
17.12 |
2.12 |
53.8 |
6¾ |
N |
13.75 |
||
|
0.682 |
17.32 |
2.14 |
54.4 |
7 |
N½ |
14 |
14 |
14.5 |
|
0.69 |
17.53 |
2.17 |
55.1 |
7¼ |
O |
15 |
15 |
|
|
0.698 |
17.73 |
2.19 |
55.7 |
7½ |
O½ |
15 |
15.75 |
|
|
0.706 |
17.93 |
2.22 |
56.3 |
7¾ |
P |
16 |
16.25 |
|
|
0.714 |
18.14 |
2.24 |
57 |
8 |
P½ |
16 |
17 |
17 |
|
0.722 |
18.34 |
2.27 |
57.6 |
8¼ |
Q |
17.5 |
||
|
0.73 |
18.54 |
2.29 |
58.3 |
8½ |
Q½ |
17 |
18 |
18.25 |
|
0.738 |
18.75 |
2.32 |
58.9 |
8¾ |
R |
19 |
19 |
|
|
0.746 |
18.95 |
2.34 |
59.5 |
9 |
R½ |
18 |
19.5 |
|
|
0.754 |
19.15 |
2.37 |
60.2 |
9¼ |
S |
20 |
20.25 |
|
|
0.762 |
19.35 |
2.39 |
60.8 |
9½ |
S½ |
19 |
21 |
20.75 |
|
0.77 |
19.56 |
2.42 |
61.4 |
9¾ |
T |
21.5 |
||
|
0.778 |
19.76 |
2.44 |
62.1 |
10 |
T½ |
20 |
22 |
22 |
|
0.786 |
19.96 |
2.47 |
62.7 |
10¼ |
U |
21 |
23 |
22.75 |
|
0.794 |
20.17 |
2.49 |
63.4 |
10½ |
U½ |
22 |
23.25 |
|
|
0.802 |
20.37 |
2.52 |
64 |
10¾ |
V |
24 |
24 |
|
|
0.81 |
20.57 |
2.54 |
64.6 |
11 |
V½ |
23 |
25 |
24.75 |
|
0.818 |
20.78 |
2.57 |
65.3 |
11¼ |
W |
25.25 |
||
|
0.826 |
20.98 |
2.59 |
65.9 |
11½ |
W½ |
24 |
26 |
26 |
|
0.834 |
21.18 |
2.62 |
66.6 |
11¾ |
X |
26.5 |
||
|
0.842 |
21.39 |
2.65 |
67.2 |
12 |
X½ |
25 |
27 |
27.25 |
|
0.85 |
21.59 |
2.67 |
67.8 |
12¼ |
Y |
28 |
27.75 |
|
|
0.858 |
21.79 |
2.7 |
68.5 |
12½ |
Z |
26 |
28.5 |
|
|
0.866 |
22 |
2.72 |
69.1 |
12¾ |
Z½ |
29 |
29 |
|
|
0.874 |
22.2 |
2.75 |
69.7 |
13 |
27 |
30 |
29.75 |
|
|
0.882 |
22.4 |
2.77 |
70.4 |
13¼ |
Z1 |
30.5 |
||
|
0.89 |
22.61 |
2.8 |
71 |
13½ |
31 |
31 |
||
|
0.898 |
22.81 |
2.82 |
71.7 |
13¾ |
Z2 |
32 |
31.75 |
|
|
0.906 |
23.01 |
2.85 |
72.3 |
14 |
Z3 |
32.25 |
||
|
0.914 |
23.22 |
2.87 |
72.9 |
14¼ |
33 |
33 |
||
|
0.922 |
23.42 |
2.9 |
73.6 |
14½ |
Z4 |
33.5 |
||
|
0.93 |
23.62 |
2.92 |
74.2 |
14¾ |
34 |
34.25 |
||
|
0.938 |
23.83 |
2.95 |
74.8 |
15 |
35 |
34.75 |
||
|
0.946 |
24.03 |
2.97 |
75.5 |
15¼ |
35.5 |
|||
|
0.954 |
24.23 |
3 |
76.1 |
15½ |
36 |
36.25 |
||
|
0.962 |
24.43 |
3.02 |
76.8 |
15¾ |
36.75 |
|||
|
0.97 |
24.64 |
3.05 |
77.4 |
16 |
37 |
37.5 |
||
