Ring Size Chart

Finger Circumference  (mm)

Ring Inside Diameter (mm)

UK 

USA 

Europe 

Italy

49.3

15.7

5

49

9.5

50.6

16.1

50.5

10.5

51.9

16.5

6

52

11.5

53.1

16.9

53

13

54.4

17.3

7

54.5

14.5

55.7

17.7

56

16

57.1

18.1

8

57

17

58.3

18.5

58

18.5

59.5

19

9

60

19.5

60.8

19.4

61

21

62.1

19.8

10

62

22

63.4

20.2

10½

63

23.5

64.6

20.6

11

64.5

25

65.9

21

11½

66

 

67.2

21.4

12

67

 

68.5

21.8

Z

12½

68

 

69.7

22.2

 

13

70