Ring Size

Ring Size Circumference(mm) UK,Europe & Australia CN/SG/JP HK Switzerland
4.5 48 I 8 10 --
5 49 0.5J 9 11 --
5.5 51 0.5K 10 12 11.75
6 52 0.5L 11 13 12.75
6.5 53 0.5M 13 14.5 14
7 55 0.5N 14 16 15.25
7.5 56 0.5O 15 17 16.5
8 57 0.5P 16 18 17.75
8.5 58 0.5Q 17 17 --
9 59 0.5R 18 20.5 --
9.5 61 0.5S 19 22 ----
Resizable - - - - -
10 62 0.5T 20 23 --
10.5 63 0.5U 22 24 22.75
11 65 0.5V 23 25 --
11.5 66 0.5W 24 26 --
12 68 0.4X 25 27.75 27.5
12.5 69 Y -- -- 28.75
13 70 -- -- -- --

*These charts are for reference only. Fit may vary depending on the construction, materials and manufacturer.

How to MeasureTo choose the correct size for you measure your body as follows