Socks International Size Table United States 4.5 - 6 6.5 - 7.5 8 - 9.5 10 - 11 11.5 - 12.5 Great Britain 4.5 - 6 6.5 - 7.5 8 - 9.5 10 - 11 11.5 - 12.5 Europe 37 - 39 40 - 41 42 - 44 45 - 46 47 - 48