Ring Sizing Guide

Finger
Circumference
in
Milimeters

Diameter
of the Ring
in
Milimeters

Ring Size

Europe
Ring Size

USA/UK/
Canada
Ring Size

Japan
44
14.01 44 3 4
45
14.33 45 3 1/4 5
46
14.65 46 3 3/4 6
47
14.97 47 4 7
48
15.29 48 4 1/2 8
49
15.61 49 4 3/4 9
50
15.92 50 5 1/4 10
51 16.20 51 5 3/4 11
52 16.56 52 6 12
53 16.88 53 6 1/4 13
54 17.20 54 6 3/4 14
55 17.52 55 7 1/4 15
56 17.83 56 7 1/2 16
57 18.15 57 8 17
58 18.47 58 8 1/4 18
59 18.79 59 8 3/4 19
60 19.11 60 9 20
61 19.43 61 9 1/2 21
62 19.75 62 10 22
63 20.06 63 10 1/4 23
64 20.38 64 10 3/4 24
65 20.70 65 11 25
66 21.02 66 11 1/2 26
67 21.34 67 11 3/4 27
68 21.66 68 12 1/4 28
69 21.97 69 12 1/2 29
70 22.29 70 13 30
71 22.61 71 13 1/4 31