Ring Size Guide

Inside Diameter (inches) Inside Diameter (mm) Inside Circumference (inches) Inside Circumference (mm) Ring Size UK Ring Size USA Ring Size Europe
0.59 15.2 1.86 47.4 I 47½
0.60 15.4 1.89 48.0 48
0.61 15.6 1.92 48.7 J 48½
0.62 15.8 1.94 49.3 5 49
0.63 16.0 1.97 50.0 K 50
0.63 16.1 1.99 50.6 50½
0.64 16.4 2.02 51.1 L 51
0.65 16.6 2.04 51.9 6 52
0.66 16.8 2.07 52.5 M 52½
0.67 17 2.09 53.1 53
0.67 17.2 2.12 53.8 N 53½
0.68 17.4 2.14 54.4 7 54
0.69 17.6 2.17 55.1 O 55
0.70 17.8 2.19 55.7 55½
0.71 18.0 2.22 56.3 P 56
0.71 18.2 2.24 57.0 8 57
0.72 18.4 2.27 57.6 Q 57½
0.73 18.6 2.29 58.3 58
0.74 18.8 2.32 58.9 R 59