Finding the right ring size can be a challenge, but we're here to help.
EU size
|
US size
|
Inner Diameter (mm)
|
Circumferential Length (mm)
|
4
|
3
|
14
|
44
|
5
|
14.3
|
45
|
|
6
|
14.6
|
45
|
|
7
|
4
|
15
|
47
|
8
|
15.3
|
48
|
|
9
|
5
|
15.6
|
49
|
10
|
15.9
|
50
|
|
11
|
16.2
|
51
|
|
12
|
6
|
16.5
|
52
|
13
|
16.8
|
53
|
|
14
|
7
|
17.2
|
54
|
15
|
17.5
|
55
|
|
16
|
17.8
|
56
|
|
17
|
8
|
18.1
|
57
|
18
|
18.4
|
58
|
|
19
|
18.8
|
59
|
|
20
|
9
|
19.1
|
60
|
21
|
19.4
|
61
|
|
22
|
10
|
19.7
|
62
|
23
|
20
|
63
|
|
24
|
20.3
|
64
|
|
25
|
11
|
20.6
|
65
|
26
|
21
|
66
|
|
27
|
12
|
21.3
|
67
|
28
|
21.6
|
68
|
|
29
|
22
|
69
|
|
30
|
13
|
22.3
|
70
|