Size Guide
INTERNAL DIAMETER (MM) 14.1 14.7 15.3 15.9 16.5 17.3 17.9 18.5 19.2 19.8 20.4
PT/SWE Ring Size 4 6 8 10 12 14 16 18 20 22 24
EUR Ring Size 44 46 48 50 52 54 56 58 60 62 64
US/CAN Ring Size 3 3 ¾ 4 ½ 5 ¼ 6 7 7 ½ 8 ½ 9 10 10 ½
UK/AU Ring Size F ½ G ¾ I ¾ K M N P Q ½ R ¾ T ¾ U ¾
Size Guide
INTERNAL DIAMETER (MM) 14.1 14.7 15.3 15.9 16.5 17.3 17.9 18.5 19.2 19.8 20.4
PT/SWE Ring Size 4 6 8 10 12 14 16 18 20 22 24
EUR Ring Size 44 46 48 50 52 54 56 58 60 62 64
US/CAN Ring Size 3 3 ¾ 4 ½ 5 ¼ 6 7 7 ½ 8 ½ 9 10 10 ½
UK/AU Ring Size F ½ G ¾ I ¾ K M N P Q ½ R ¾ T ¾ U ¾