US 6 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 14 15 16
UK 5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 13 14 15
EU 38.5 39.5 40 41 41.5 42 42.5 43 44 45 45.5 46 47 47.5 48.5 50.5 51