Hell to toe (inside) Width EU Size UK Size
US 6 9.17'' 3.62'' 36 5
US 7 9.45'' 3.70'' 37 6
US 7.5 9.72'' 3.70'' 38 6.5
US 8 9.96'' 3.78'' 39 7
US 9 10.24'' 3.82'' 40 8
US 10 10.47'' 3.86'' 41 9
US 11 10.75'' 3.94'' 42 10
US 12 11.02'' 3.98'' 43 11