European to US Size Conversion Chart 

Euro 38 38.5 39 39.5 40 40.5 41 41.5 42 42.5 43 43.5 44 44.5 45 45.5 46 46.5 47 48 49 50 51
US 5 5.5 6 6.25 6.75 7 7.5 8 8.25 8.75 9.25 9.75 9.75 10.25 10.5 11 11.5 11.75 12.25 13 14 15 16