Ring size guide

Jewellery
Inside Diameter
Inside Circumference
Ring Size
inches
mm
inches
mm
UK
US
EU
0.52 13.2 1.63 41.5 D 2.25 41
0.53 13.5 1.68 42.76 E 2.75 42
0.55 13.97 1.74 44.14 F 3.25 44
0.56 14.38 1.77 45.11 G 3.75 45
0.58 14.88 1.81 46.02 H 4.25 46.5
0.59 15.1 1.86 47.25 I 4.5 47
0.6 15.49 1.9 48.38 J 5 48.5
0.62 15.9 1.95 49.64 K 5.5 50
0.64 16.31 1.99 50.58 L 6 51
0.65 16.71 2.04 51.87 M 6.5 52
0.67 17.12 2.09 53.16 N 6.75 53.5
0.69 17.53 2.15 54.51 O 7 55
0.7 17.93 2.2 55.76 P 7.5 56
0.72 18.34 2.25 57.15 Q 8 57
0.73 18.75 2.3 58.47 R 8.5 58.5
0.75 19.15 2.36 60 S 9 59.5
0.77 19.56 2.41 61.29 T 9.5 61
0.78 19.81 2.48 62.89 U 10 62.5
0.79 20.17 2.51 63.84 V 10.5 62.5
0.81 20.61 2.57 65.22 W 11 65
0.83 20.99 2.62 66.54 X 11.5 66
0.84 21.32 2.66 67.51 Y 12 67.5
0.85 21.71 2.71 68.77 Z 12.5 69
0.87 22.1 2.73 69.43 Z+ 13 70.5