EU

UK

Size 3

36

Size 4

37

Size 4.5

37.5

Size 5

38

Size 5.5

38.5

Size 6

39

Size 6.5

39.5

Size 6.5/7

40

Size 7

40.5

Size 7.5

41

Size 7.5/ 8

41.5

Size 8

42