UK Size

EU Size

US

cm

2.5

18

3

10.8

3

19

3.5

11.5

4

20

4.5

12.2

4.5/5

21

5-5.5

12.8

5.5

22

6

13.5

6.5

23

7

14.2

7

24

7.5

14.8

8

25

8.5

15.5

8.5

26

9-9.5

16.2

9.5

27

10

16.8

10

28

11

17.5

Youth 11

29

11.5

18.2

Youth 12

30

12.5

18.8

Youth 12.5

31

13

19.5

Youth 13.5

32

1

20.2

Youth 1

33

2

20.9

Youth 2

34

2.5

21.6

Size 2.5-3

35

3.5

22.2

Size 3.5

36

4

22.9

Size 4.5

37

5

23.6

Size 5

38

5.5

24.2

Size 6

39

6.5

24.9