Kid's Size
Conversions

US

0.5
1
1.5
2
2.5
3
3.5
4
4.5
5

Euro

16
16
17
17
18
18
19
19
20
20

UK

0
0.5
1
1
1.5
2
2.5
3
3.5
4

Inches

3.25"
3.5"
3.625"
3.75"
4"
4.125"
4.25"
4.5"
4.625"
4.75"

CM

8.3
8.9
9.2
9.5
10.2
10.5
10.8
11.4
11.7
12.1

Approximate Age



Infant
(0 - 12 months)

5.5
6
6.5
7
7.5
8
8.5
9
9.5
10
10.5
11
11.5
12

21
22
22
23
23
24
25
25
26
27
27
28
29
30

4.5
5
5.5
6
6.5
7
7.5
8
8.5
9
9.5
10
10.5
11

5"
5.125"
5.25"
5.5"
5.625"
5.75"
6"
6.125"
6.25"
6.5"
6.625"
6.75"
7"
7.125"

12.7
13
13.3
14
14.3
14.6
15.2
15.6
15.9
16.5
16.8
17.1
17.8
18.1

Children
(1 - 5 years)
18 months


24 months


3 years


4 years

5 years

12.5
13
13.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
6.5
7

30
31
31
32
33
33
34
34
35
36
36
37
37
38
38
39

11.5
12
12.5
13
14
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6

7.25"
7.5"
7.625"
7.75"
8"
8.125"
8.25"
8.5"
8.625"
8.75"
9"
9.125"
9.25"
9.5"
9.625"
9.75"

18.4
19.1
19.4
19.7
20.3
20.6
21
21.6
21.9
22.2
22.9
23.2
23.5
24.1
24.4
24.8

Youth
(6 - 10 years)

6 years



7 years


8 years


9 years

10 years