Euro Size US Size Age
16 0 Newborn
17 1 6 weeks - 3 months
18 2 3-6 months
19 3 6-12 months
20 4 12 months
21 5 12-18 months
22 6 18-24 months
23 7 2-2 1/2 years
24 8 2 1/2-3 years
25 8.5 3 1/2-4 years
26 9 4 years
27 10 4 1/2 years
28 11  5 years
29 12 5 1/2 years
30 12.5 6 years
31 13 6 1/2 years
32 1 7 years
33 2 7 1/2 years
34 3 8 years