The following lists the conversion of US shoe sizes to EU shoe sizes for different groups, including women, men, big kids, young kids, toddlers and babies. For each group, you can see the conversion of every shoe size from the US shoe size system to the EU shoe size system, you can also see the length of each shoe size in inches, cm and millimeters.
(US to EU Conversion) Womens' Shoe Size
US Size
EU Size
Inches
cm
mm
4
35
9
22.8
228
5
36
9.3
23.5
235
6
37
9.5
24.1
241
7
38
9.8
24.8
248
8
39
10
25.4
254
9
40
10.2
26
260
10
41
10.5
26.7
267
11
42
10.7
27.3
273
(US to EU Conversion) Mens' Shoe Size
US Size
EU Size
Inches
cm
mm
4
35.5
9
22.8
228
5
37
9.3
23.5
235
6
38
9.5
24.1
241
7
39
9.8
24.8
248
8
40.5
10
25.4
254
8.5
41
10.1
25.7
257
9
42
10.2
26
260
9.5
42.5
10.4
26.3
263
10
43
10.5
26.7
267
10.5
44
10.6
27
270
11
44.5
10.7
27.3
273
11.5
45
10.9
27.6
276
12
46
11
27.9
279
13
47
11.3
28.6
286
14
48
11.5
29.2
292
(US to EU Conversion) Big kids' Shoe Size
Age
US Size
EU Size
Inches
cm
mm
8-9 years
2
33
8.1 - 8.4
20.7 - 21.3
207-213
9-11 years
2
33
8.3 - 8.5
21 - 21.6
210-216
9-11 years
3
34
8.4 - 8.7
21.4 - 22
214-220
10-12 years
3
35
8.7 - 8.9
22.1 - 22.7
221-227
10-12 years
3.5
36
8.8 - 9.1
22.4 - 23
224-230
10-12 years
4
36
9 - 9.2
22.8 - 23.4
228-234
11-13 years
4.5
37
9.1 - 13.3
23.1 - 23.7
231-237
11-13 years
5
37
9.3 - 9.5
23.5 - 24.1
235-241
12-14 years
5.5
38
9.4 - 9.6
23.8 - 24.5
238-245
12-14 years
6
38
9.5 - 9.8
24.2 - 24.8
242-248
13-15 years
6.5
39
9.6 - 9.9
24.5 - 25.1
245-251
13-15 years
7
40
9.8 - 10
24.9 - 25.5
249-255
16 years +
7.5
41
10 - 10.2
25.3 - 25.9
253-259
16 years +
8
41
10.1 - 10.3
25.6 - 26.2
256-262
16 years +
8.5
42
10.2 - 10.4
25.9 - 26.5
259-265
16 years +
9
42
10.4 - 10.6
26.3 - 26.9
263-269
16 years +
9.5
43
10.5 - 10.7
26.7 - 27.3
267-273
16 years +
10
43
10.6 - 10.9
27 - 27.6
270-276
(US to EU Conversion) Young kids' Shoe Size
Age
US Size
EU Size
Inches
cm
mm
3 years
9
25
6 - 6.3
15.3 - 15.9
153-159
3-4 years
9.5
26
6.3 - 6.5
16 - 16.6
160-166
4-6 years
10
27
6.6 - 6.8
16.7 - 17.2
167-172
5-7 years
10
27
6.7 - 6.9
17 - 17.6
170-176
5-7 years
11
28
6.8 - 7
17.3 - 17.9
173-179
6-8 years
11
28
6.9 - 7.2
17.6 - 18.2
176-182
6-8 years
12
29
7.1 - 7.3
18 - 18.5
180-185
6-8 years
12
29
7.2 - 7.4
18.3 - 18.9
183-189
6-8 years
13
30
7.3 - 7.6
18.6 - 19.2
186-192
8-9 years
13
31
7.6 - 7.8
19.3 - 19.9
193-199
8-9 years
1
32
7.9 - 8.1
20 - 20.6
200-206
8-10 years
1
32
8 - 8.2
20.3 - 20.9
203-209
8-10 years
2
33
8.1 - 8.4
20.7 - 21.3
207-213
9-11 years
2
33
8.3 - 8.5
21 - 21.6
210-216
9-11 years
3
34
8.4 - 8.7
21.4 - 22
214-220
10-12 years
3
35
8.7 - 8.9
22.1 - 22.7
221-227
10-12 years
3.5
36
8.8 - 9.1
22.4 - 23
224-230
10-12 years
4
36
9 - 9.2
22.8 - 23.4
228-234
11-13 years
4.5
37
9.1 - 9.3
23.1 - 23.7
231-237
11-13 years
5
37
9.3 - 9.5
23.5 - 24.1
235-241
(US to EU Conversion) Toddlers' Shoe Size
Age
US Size
EU Size
Inches
cm
mm
18-24 months
6
22
5.2 - 5.5
13.3 - 13.9
133-139
2 years
7
23
5.5 - 5.7
14 - 14.5
140-145
2-3 years
8
24
5.7 - 6
14.6 - 15.2
146-152
2-3 years
8
24
5.9 - 6.1
14.9 - 15.5
149-155
3 years
9
25
6 - 6.3
15.3 - 15.9
153-159
3-4 years
9.5
26
6.3 - 6.5
16 - 16.6
160-166
4-6 years
10
27
6.6 - 6.8
16.7 - 17.2
167-172
5-7 years
10
27
6.7 - 6.9
17 - 17.6
170-176
5-7 years
11
28
6.8 - 7
17.3 - 17.9
173-179
6-8 years
11
28
6.9 - 7.2
17.6 - 18.2
176-182
6-8 years
12
29
7.1 - 7.3
18 - 18.5
180-185
6-8 years
12
29
7.2 - 7.4
18.3 - 18.9
183-189
6-8 years
13
30
7.3 - 7.6
18.6 - 19.2
186-192
8-9 years
13
31
7.6 - 7.8
19.3 - 19.9
193-199
(US to EU Conversion) Baby's Shoe Size
Age
US Size
EU Size
Inches
cm
mm
0-1 months
-
15
3.3 - 3.5
8.4 - 9
84-90
0-3 months
-
16
3.6 - 3.9
9.1 - 9.8
91-98
3-6 months
2
17
3.9 - 4.1
9.9 - 10.4
99-104
6-9 months
3
18
4.1 - 4.4
10.5 - 11.1
105-111
6-9 months
4
19
4.4 - 4.6
11.2 - 11.8
112-118
9-12 months
5
20
4.7 - 4.9
11.9 - 12.5
119-125
12-18 months
6
21
5 - 5.2
12.6 - 13.2
126-132
18-24 months
7
22
5.2 - 5.5
13.3 - 13.9
133-139
2 years
8
23
5.5 - 5.7
14 - 14.5
140-145
Since the shoe standards of different regions and different manufacturers are different, the above size conversion chart can only be used as a reference
