Women's size guide

UK US EU CM
2.5/3 4/4.5 35 21.8
3.5 5/5.5 36 23.0
6/6.5 7/7.5 37 23.7
5/5.5 7/7.5 38 24.3
6 8/8.5 39 25
6.5/7 9/9.5 40 25.7
7.5 10/10.5 41 26.3
8/8.5 11/11.5 42 27.0
9 12/12.5 43 27.7