Ring Size Chart

US

UK/AU

FR

IT

JP

Inside Diameter

Inside Circumference

5

J 1/2

50

9.5

9

15.7 mm

49.0 mm

6

M

52 3/4

11.5

12

16.5 mm

51.5 mm

7

O

55 1/4

14.5

14

17.3 mm

54.0 mm

8

Q

57 3/4

17

16

18.2 mm

56.6 mm