What ring size do I need?

Please see the chart below to work out your size.

MM UK US EU
12.84 D 2.25 41
13.57 E 2.75 42
13.97 F 3.25 44
14.38 G 3.75 45
14.88 H 4.25 46.5
15.1 I 4.5 47
15.49 J 5 48.5
15.9 K 5.5 50
16.31 L 6 51
16.71 M 6.5 52
17.12 N 6.75 53.5
17.53 O 7 55
17.93 P 7.5 56
18.34 Q 8 57
18.75 R 8.5 58.5