Ring Size

Ring size standards vary from country to country. In Japan, Japan Custom Size (JCS) is widely used as the customary ring size and is called "JCS standard".
AGLOBE's rings are sized according to this JCS standard.
Since ring size standards and notations differ between Japan and other countries, please use the following chart as a guide when purchasing rings.

International Ring Sizing Chart

Singapore & Japan
(JCS standard)		 United States & Canada Europe UK & Australia Hong Kong Switzerland Diameter(mm)
4 3 44 F 1/2 6 4 14.1
5 45 G 5 1/4 14.3
3.5 G 1/2 7 14.5
6 46 H 6 1/2 14.7
7 4 47 H 1/2 8 14.9
I 7 3/4 15.1
8 4.5 48 I 1/2 9 15.3
J 10 9 15.5
9 5 49 J 1/2 15.7
50 K 11 10 15.9
10 5.5 K 1/2 16.1
51 L 12 11 3/4 16.3
11 6 52 L 1/2 13 12 3/4 16.5
12 M 16.7
13 6.5 53 M 1/2 14 14 16.9
N 17.1
14 7 54 N 1/2 15 15 1/4 17.3
55 O 16 17.5
15 7.5 O 1/2 16 1/2 17.7
56 P 17 17.9
16 8 57 P 1/2 17 3/4 18.1
18 18.2
Q 18.3
17 8.5 58 Q 1/2 18.5
59 R 19 19 18.8
18 9 R 1/2 20 19
60 S 20 1/4 19.2
19 9.5 61 S 1/2 21 19.4
T 21 1/2 19.6
20 10 62 T 1/2 22 19.8
21 U 20
22 10.5 63 U 1/2 23 22 3/4 20.2
64 V 24 20.4
23 11 V 1/2 20.6
65 W 25 25 20.8
24 11.5 66 W 1/2 21
X 26 21.2
25 12 67 X 1/2 27 27 1/2 21.4
Y 21.6
26 12.5 68 Z 28 3/4 21.8
69 Z 1/2 22
27 13 70 22.2
Z+1 22.4
13.5 Z+2 22.6