How do I know which size will fit me best?

Below is a chart you can use as a guide when choosing the correct size of shoes to order.

US EU UK Japan Australia
5 35 2 22 4
5.5 35.5 2.5 22.5 4.5
6 36 3 23 5
6.5 36.5 3.5 23.5 5.5
7 37 4 24 6
7.5 37.5 4.5 24.5 6.5
8 38 5 25 7
8.5 38.5 5.5 25.5 7.5
9 39 6 26 8
9.5 39.5 6.5 26.5 8.5
10 40 7 27 9