Men's Rings Size Chart

INNER DIAMETER MM ITALIAN USA UK EUROPE
18.47 18 Q¼ 58
18.79 19 R¼ 59
19.11 20 9 R¾ 60
19.43 21 S¾ 61
19.75 22 10 T½ 62
20.06 23 10¼ U 63
20.38 24 10¾ V¼ 64
20.70 25 11 V½ 65
21.02 26 11½ W¾ 66
21.34 27 11¾ X¼ 67
21.66 28 12¼ Y½ 68
21.97 29 12½ Z 69
22.29 30 13 Z+1 70

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