Ring Size Chart

The below table displays different country ring sizes.

 

Inside Diameter Inside Circumference Ring Size
mm mm British & Australian US & Canada French & Russian
14.65 46.02 H 3 3/4 46 1/2
15.04 47.25 I 4 1/4 47 3/4
15.40 48.38 J 4 5/8 49
15.80 49.64 K 5 1/8 50
16.10 50.58 L 5 1/2 51 3/4
16.51 51.87 M 6 52 3/4
16.92 53.16 N 6 1/2 54
17.35 54.51 O 7 55 1/4
17.75 55.76 P 7 1/2 56 1/2
18.19 57.15 Q 8 57 3/4
18.61 58.47 R 8 5/8 59
19.10 60 S 9 1/8 60 1/4
19.51 61.29 T 9 5/8 61 1/2
20.02 62.89 U 10 1/4 62 3/4
20.32 63.84 V 10 5/8 63
20.76 65.22 W 11 1/8 65
21.18 66.54 X 11 5/8 66 1/4
21.49 67.51 Y 12 67 1/2
21.89 68.77 Z 12 1/2 68 3/4