Ring Sizing

 Ring Size Conversion Chart
Circumference (MM) Diameter (MM) US Ring Size European Ring Size UK Ring Size
46.8 14.9 4 47 H 1/2
48 15.3 4.5 48 I 1/2
49.3 15.7 5 49 J 1/2
50.6 16.1 5.5 - K 1/2
51.9 16.5 6 52 L 1/2
53.1 16.9 6.5 53 M 1/2
54.4 17.3 7 54 N 1/2
55.7 17.7 7.5 - O 1/2
57 18.1 8 57 P 1/2
58.3 18.5 8.5 58 Q 1/2
59.5 19 9 - R 1/2
60.8 19.4 9.5 61 S 1/2
62.1 19.8 10 62 T 1/2
63.4 20.2 10.5 63 U 1/2
64.6 20.6 11 - V 1/2
65.9 21 11.5 66 W 1/2
67.2 21.4 12 67 X 1/2
68.5 21.8 12.5 68 Z
69.7 22.2 13 70 -
71 22.6 13.5 - Z+2