Ring size table for Women's Jewelry
U.S.
Diam inch
Diam mm
Cric mm
U.K.
French
German
Japan
6
0.65
16.51
51.5
M
52 3/4
16.5
12
6.5
0.66
16.92
52.8
N
54
17
13
7
0.68
17.35
54
O
55 1/4
17 1/4
14
7.5
0.69
15.75
55.3
P
56 1/2
17 3/4
15
8
0.716
18.19
56.6
Q
57 3/4
18
16
Ring size table for 316L Steel Jewelry
U.S.
Diam inch
Diam mm
Cric mm
U.K.
French
German
Japan
8
0.716
18.19
56.6
Q
57 3/4
18
16
8.5
0.732
18.53
57.8
-
-
18.5
17
9
0.748
18.89
59.1
-
-
19
18
9.5
0.764
19.41
60.3
-
-
19.5
19
10
0.781
19.84
61.6
T 1/2
-
20
20
10.5
0.797
20.2
62.8
U 1/2
¡@
20 1/4
22
11
0.814
20.68
64.1
V 1/2
-
20 3/4
23
¡@
