s
Find your ring size
To find your ring size, you can use a ring of yours and measure either the internal circumference of it or its diameter in millimeters.You can also refer to the table below to find the equivalent in ring sizes.
 
 
CIRCUMFERENCE*
DIAMETER**
EUROPEAN USA BRITISH
48 15.30 8 ¾ I  ½
49 15.60 9 5 J
50 15.90 10 ¼ K
51 16.23 11 5 ½ K ½
52 16.55 12 6 L ½
53 16.87 13 6 ¼ M
54 17.19 14 6 ¾ -7 N
55 17.56 15 7 ¼ O
56 17.83 16 7 ½ O ½
57 18.14 17 7 ¾ - 8 P ½
58 18.46 18 8 ¼ Q
59 18.78 19 8 ¾ R
60 19.10 20 9 S
61 19.42 21 9 ½ S ½
62 19.74 22 9 ¾-10 T ½
63 20.05 23 10 ¼ U
64 20.37 24 10 ½ V
65 20.69 25 11 W
66 21.01 26 11 ¼ W ½
67 21.33 27 11 ¾ X ½
68 21.65 28 12 Y
69 21.96 29 12 ½ Z
70 22.28 30 12 ¾ Z+1
71 22.70 31.50 13 ½ Z +2
72 23.10 32.60 14 Z+3
73 23.25 33 14 ¼ Z+3½
74 23.50 34 14 ½ Z+4