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Ring Size

International ring sizes

Other countries use a different scale to the U.K; you can use the table below to help you decide which size you need

 Circumference (mm) Diameter (mm) Europe UK & Australia US & Canada
44.2 14.1 44 3
44.8 14.3 45 G  
45.5 14.5  
46.1 14.7 46 H  
46.8 14.9 47 4
47.4 15.1   I  
48.0 15.3 48 4½<
48.7 15.5   J  
49.3 15.7 49 5
50.0 15.9 50 K  
50.6 16.1  
51.2 16.3 51 L  
51.9 16.5 52 6
52.5 16.7   M  
53.1 16.9 53
53.8 17.1   N  
54.4 17.3 54 7
55.1 17.5 55 O  
55.7 17.7  
56.3 17.9 56 P  
57.0 18.1 57 8
57.2 18.2      
57.6 18.3   Q  
58.3 18.5 58
58.9 18.8 59 R  
59.5 19.0   9
60.2 19.2 60 S  
60.8 19.4 61
61.4 19.6   T  
62.1 19.8 62 10
62.7 20.0   U  
63.4 20.2 63 10½
64.0 20.4 64 V  
64.6 20.6   11
65.3 20.8 65 W  
65.9 21.0 66 11½
66.6 21.2   X  
67.2 21.4 67 12
67.8 21.6   Y  
68.5 21.8 68 Z 12½
69.1 22.0 69 Z  
69.7 22.2 70   13
70.4 22.4   Z+1  
71.0 22.6   Z+2 13½