Ring Size Chart

Inside Diameter (mm) Inside Circumference (mm) USA & Canada UK, Ireland, Australia, New Zealand Europe Japan China
14.1 44.2 3 F 44 4 4
14.5 45.5 3.5 G 45.5 5 5
14.9 46.8 4 H 47 6 6
15.3 48.0 4.5 I 48 7 7
15.7 49.3 5 J 49 8 8
16.1 50.6 5.5 K 50 9 9
16.5 51.9 6 L 51.5 10 10
16.9 53.1 6.5 M 53 12 12
17.3 54.4 7 N 54 13 13
17.7 55.7 7.5 O 55 14 14
18.1 57.0 8 P 56.5 16 16
18.5 58.3 8.5 Q 58 17 17
19.0 59.5 9 R 59 18 18
19.4 60.8 9.5 S 60 19 19
19.8 62.1 10 T 61 20 20
20.2 63.4 10.5 U 62 22 22
20.6 64.6 11 V 63 23 23
21.0 65.9 11.5 W 65 24 24
21.4 67.2 12 X 66 25 25
21.8 68.5 12.5 Y 67 27 27
22.2 69.7 13 Z 68 28 28