International Ring Size Chart - Compare Sizes for India, US, UK, EU, Japan, and More

International Ring Size Chart

International Ring Size Chart

US/Canada UK/Australia Europe Japan India Switzerland Circumference (mm) Diameter (mm)
3 F 1/2 44 4 1 4 44.1 14.0
3.5 G 1/2 45 5 2 5 45.5 14.4
4 H 1/2 46 6 3 6 46.8 14.8
4.5 I 1/2 47 7 4 7 48.0 15.2
5 J 1/2 49 9 5 9 49.3 15.7
5.5 K 1/2 50 10 6 10 50.6 16.1
6 L 1/2 51 11 7 12 51.8 16.5
6.5 M 1/2 52 13 8 14 53.1 16.9
7 N 1/2 54 14 9 15 54.4 17.3
7.5 O 1/2 55 15 10 16 55.7 17.7
8 P 1/2 57 16 11 17 56.9 18.1
8.5 Q 1/2 58 17 12 18 58.2 18.5
9 R 1/2 59 18 13 20 59.5 18.9
9.5 S 1/2 60 19 14 21 60.8 19.3
10 T 1/2 62 20 15 22 62.1 19.7
10.5 U 1/2 63 22 16 24 63.3 20.2
11 V 1/2 64 23 17 25 64.6 20.6
11.5 W 1/2 66 24 18 26 65.9 21.0
12 X 1/2 67 25 19 27 67.2 21.4
12.5 Y 1/2 68 26 20 28 68.4 21.8
13 Z 1/2 70