SIZE US UK EUR CONVERSION 5 2 5 6 3 36 6.5 4 37 7 4.5 37.5 7.5 5 38 8 5.5 38.5 8.5 6 39 9 7 40 10 8 41 10.5 9 42 11 9.5 42.5 12 10 43 30