Chuck Taylor All Stars run about half a size large. Most people go half a size down from their usual sneaker size; Chuck 70 fits slightly snugger than the classic.
Converse — Men
Converse Men
US
UK
EU
CM
KR(mm)
6
6
39
24.5
245
6.5
6.5
39.5
25
250
7
7
40
25.5
255
7.5
7.5
41
26
260
8
8
41.5
26.5
265
8.5
8.5
42
27
270
9
9
42.5
27.5
275
9.5
9.5
43
28
280
10
10
44
28.5
285
10.5
10.5
44.5
29
290
11
11
45
29.5
295
11.5
11.5
46
30
300
12
12
46.5
30.5
305
13
13
48
31.5
315
Converse — Women
Converse Women
US
UK
EU
CM
KR(mm)
5
3
35.5
22
220
5.5
3.5
36
22.5
225
6
4
36.5
23
230
6.5
4.5
37
23.5
235
7
5
37.5
24
240
7.5
5.5
38
24.5
245
8
6
39
25
250
8.5
6.5
39.5
25.5
255
9
7
40
26
260
9.5
7.5
41
26.5
265
10
8
41.5
27
270
10.5
8.5
42
27.5
275
11
9
42.5
28
280
Converse — Kids
Converse Kids
US
UK
EU
CM
KR(mm)
10.5
10
27
17
170
11
10.5
28
17.5
175
11.5
11
28.5
18
180
12
11.5
29.5
18.5
185
12.5
12
30
19
190
13
12.5
31
19.5
195
13.5
13
31.5
20
200
1
13.5
32
20.5
205
1.5
1
33
21
210
2
1.5
33.5
21.5
215
2.5
2
34.5
22
220
3
2.5
35
22.5
225
Sizes are approximate and vary by brand
Tips
Converse is unisex: US men and US UK numbers match, and women's = men's + 2 (M 6 = W 8).
Order by CM: the number printed inside the tongue is foot length, the most reliable reference.
Leather and Chuck 70 stretch less than canvas, so do not size down as aggressively.