UK
EU
5
38
5½
38⅔
6
39⅓
6½
40
7
40⅔
7½
41⅓
8
42
8½
42⅔
9
43⅓
9½
44
10
44⅔
10½
45⅓
11
46
11½
46⅔
12
47
12½
48
13
48⅔