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Ring Size Guides

Circumference
(mm)
Diameter
(mm)
USA/
Canada
UK/
Australia
Europe
42.8 13.7 2 E 43
43.5 13.9 E 1/2
44.2 14.1 3 F 44
44.8 14.3 F 1/2 45
45.5 14.5 3 1/2 G
46.1 14.7 G 1/2
46.8 14.9 4 H 46
47.4 15.1 H 1/2
48 15.3 4 1/2 I 47
48.7 15.5 I 1/2 48
49.3 15.7 5 J 49
50 15.9 J 1/2 50
50.6 16.1 5 1/2 K
51.2 16.3 K 1/2 51
51.9 16.5 6 L
52.5 16.7 L 1/2 52
53.1 16.9 6 1/2 M
53.8 17.1 M 1/2 53
54.4 17.3 7 N 54
55.1 17.5 N 1/2 55
55.7 17.7 7 1/2 O
56.3 17.9 O 1/2 56
57 18.1 8 P
57.6 18.3 P 1/2 57
58.3 18.5 8 1/2 Q 58
58.9 18.8 Q 1/2 59
59.5 19 9 R