CALCULATOR
Shoe size
Comparision of different shoe size systems - European (EU), United Kingdom (UK, British), foot size in centimeters (CM) and few more.

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Woman's size

American (US)European (EU)British (UK)Foot length in inchesFoot length in centimeters (CM)
4
35
2
8.1875
20.8
4.5
35
2.5
8.375
21.3
5
35-36
3
8.5
21.6
5.5
36
3.5
8.75
22.2
6
36-37
4
8.875
22.5
6.5
37
4.5
9.0625
23
7
37-38
5
9.25
23.5
7.5
38
5.5
9.375
23.8
8
38-39
6
9.5
24.1
8.5
39
6.5
9.6875
24.6
9
39-40
7
9.875
25.1
9.5
40
7.5
10
25.4
10
40-41
8
10.1875
25.9
10.5
41
8.5
10.3125
26.2
11
41-42
9
10.5
26.7
11.5
42
9.5
10.6875
27.1
12
42-43
10
10.875
27.6

Men's size

American (US)European (EU)British (UK)Foot length in inchesFoot length in centimeters (CM)
6
39
5.5
9.25
23.5
6.5
39
6
9.5
24.1
7
40
6.5
9.625
24.4
7.5
40-41
7
9.75
24.8
8
41
7.5
9.9375
25.4
8.5
41-42
8
10.125
25.7
9
42
8.5
10.25
26
9.5
42-43
9
10.4375
26.7
10
43
9.5
10.5625
27
10.5
43-44
10
10.75
27.3
11
44
10.5
10.9375
27.9
11.5
44-45
11
11.125
28.3
12
45
11.5
11.25
28.6
13
46
12.5
11.5625
29.4
14
47
13.5
11.875
30.2
15
48
14.5
12.1875
31
16
49
15.5
12.5
31.8

Youth size

American (US)European (EU)British (UK)Foot length in inchesFoot length in centimeters (CM)
K10.5
27
9.5
6.625
16.8
K11
28
10
6.75
17.1
K11.5
29
10.5
7
17.8
K12
30
11
7.125
18.1
K12.5
30
11.5
7.25
18.4
K13
31
12
7.5
19.1
K13.5
31
12.5
7.625
19.4
1
32
13
7.75
19.7
1.5
33
14
8
20.3
2
33
1
8.125
20.6
2.5
34
1.5
8.25
21
3
34
2
8.5
21.6
3.5
35
2.5
8.625
21.9
4
36
3
8.75
22.2
4.5
36
3.5
9
22.9
5
37
4
9.125
23.2
5.5
37
4.5
9.25
23.5

Some facts

  • There are many different shoe size systems in use over the world. Most popular are european (EU), american (US), british (UK) and systems based on foot size in centimeters or inches directly.
  • Most systems use different scales depending on gender (woman, men) or age group (adult, child).
  • Shoe size in American system (US, used in United States and Canada):
    • shoe size (man) = 3 × last size in inches - 24
    • shoe size (woman) = 3 × last size in inches - 22 1/2
    • shoe size (child) = 3 × last size in inches - 11 2/3
  • Shoe size in British system (UK, used in United Kingdom and Ireland):
    • shoe size (man) = 3 × last size in inches - 25
    • shoe size (child) = 3 × last size in inches - 12
  • Shoe size in European Union sysem (EU) is independent both on gender and age:
    • shoe size = 3/2 × last size in centimeters (cm)
    • The size of the last is defined as 1.5 - 2.0 cm larger than size of the real foot, so the formula for shoe size using foot size is:
      shoe size = 3/2 × (last size in centimeters + 1.5 cm)

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