Young Soles London shoe size guide in millimetres. The most accurate way to measure your child's foot is to have them stand on a piece of paper, mark the heal and longest toe and measure this distance.

 EU Size Max Length in MM
20 134
21 140
22 147
23 154
24 160
25 167
26 174
27 180
28 188
29 195
30 201
31 208
32 215
33 221
34 228
35 235