Size Chart

         All orders must be placed with United States / Canada ring sizes.
Please use this chart to determine your ring size based on the inner ring diameter, or conversions from ring sizes used in other countries.
Internal Diameter (mm) US/CA UK/AUS EU
14.1 mm 3 F 44
14.5 mm 3.5 G 45
14.9 mm 4 H 47
15.3 mm 4.5 I 48
15.7 mm 5 J 1/2 50
16.1 mm 5.5 K 1/2 52
16.5 mm 6 L 1/2 53
16.7 mm - - -
16.9 mm 6.5 M 1/2 54
17.3 mm 7 N 1/2 55
17.7 mm 7.5 O 1/2 56
18.1 mm 8 P 1/2 57
18.5 mm 8.5 Q 1/2 58
18.8 mm - - -
19 mm 9 R 1/2 59
19.4 mm 9.5 S 1/2 60
19.8 mm 10 T 1/2 61
20 mm - - -
20.2 mm 10.5 U 1/2 62
20.6 mm 11 V 1/2 63
21 mm 11.5 W 1/2 64
21.4 mm 12 X 1/2 66
21.5 mm - - -
21.6 mm - - 68
21.8 mm 12.5 Z -
21.9 mm - - 69
22.1 mm - - -
22.3 mm 13 - 70
22.5 mm - Z 1/2 -
22.6 mm 13.5 - -
22.7 mm - - 71
22.9 mm - Z+2 72
23.2 mm 14 Z+3 -
23.4 mm - Z+4 -