Womens

UK 3 4 5 6 7 8 9
EU 36 37 38 39 40 41 42
US / AU 5 6 7 8 9 10 11

Young Children / Toddler

UK 2 3 4 4.5 5 6 7 8 8.5
EU 18 19 20 21 22 23 24 25 26
US / AU 3 4 5 5.5 6 7 8 8.5 9

Older Children

UK 9 10 11 12 12.5 13 1 2 2.5 3
EU 27 28 29 30 31 32 33 34 35 36
US / AU 10 11 12 12.5 13 1 2 3 3.5 4

Mens

UK 6 7 8 9 10 11 12
EU 40 41 42 43 44 45 46
US / AU 7 8 9 10 11 12 13