EU Size	UK Size	US Size	Fit
19 EU	3.5 UK Toddler	4 US Toddler	Standard
20 EU	4 UK Toddler	4.5 US Toddler	Standard
21 EU	4.5 UK Toddler	5 US Toddler	Standard
22 EU	5.5 UK Toddler	6 US Toddler	Standard
23 EU	6 UK Toddler	6.5 US Toddler	Standard
24 EU	7 UK Toddler	7.5 US Toddler	Standard
25 EU	8 UK Toddler	8.5 US Toddler	Standard
26 EU	9 UK Toddler	9.5 US Toddler	Standard
27 EU	10 UK Kid	10.5 US Little Kid	Standard
28 EU	11 UK Kid	11.5 US Little Kid	Standard
29 EU	11.5 UK Kid	12 US Little Kid	Standard
30 EU	12 UK Kid	12.5 US Little Kid	Standard
31 EU	13 UK Kid	13.5 US Little Kid	Standard
32 EU	1 UK	1.5 US Little Kid	Standard
33 EU	2 UK	2.5 US Little Kid	Standard
34 EU	2.5 UK	3 US Little Kid	Standard
35 EU	3.5 UK	4 US Big Kid	Standard
36 EU	4 UK	4.5 US Big Kid	Standard
37 EU	4.5 UK	5 US Big Kid	Standard
38 EU	5 UK	5.5 US Big Kid	Standard
39 EU	5.5 UK	6 US Big Kid	Standard
40 EU	6 UK	6.5 US Big Kid	Standard
41 EU	6.5 UK	7 US Big Kid	Standard