Ring Size Guide

International size guide

Inside Diameter/Millimeters(mm) US and Canada UK, Europe, and Australia Switzerland Asia (HK, China, Singapore, Taiwan, Japan)
14.1 3 F 4 4
14.5 3.5 G 5.75 N/A
14.9 4 H N/A 7
15.3 4.5 I N/A 8
15.7 5 J N/A 9
16.1 5.5 K N/A 10
16.5 6 L 12.75 11
16.9 6.5 M 14 13
17.3 7 N 15.25 14
17.7 7.5 O 16.5 15
18.1 8 P 17.75 16
18.5 8.5 Q N/A 17
19 9 R N/A 18
19.4 9.5 S N/A 19
19.8 10 T N/A 20
20.2 10.5 U 22.75 22
20.6 11 V N/A 23