EU Children's	US Children's
25	7 - 7.5
26	8 - 8.5
27	9 - 9.5
28	10 - 10.5
29	11 - 11.5
30	12 - 12.5
31	13 - 13.5
32	1 - 1.5
33	2 - 2.5

Please note that these are guidelines and we cannot guarantee a specific size will fit.