Ring Sizes

 Ring Size EU Ring Size Inner Diameter of Ring (mm) Finger Circumference (mm)
3 44-45 ~14.1 ~44.2
4 46-47 ~14.9 ~46.7
5 48-50 ~15.7 ~49.3
6 51-52 ~16.5 ~51.3
7 53-55 ~17.3 ~55.0
8 56-58 ~18.2 ~57.8
9 59-60 ~19.1 ~60.0
10 61-63 ~19.8 ~62.2

If you're right between sizes, we suggest to choose the bigger size.