Nike vs Converse shoe sizes

Nike and Converse don't always agree. Here is every US size side by side, from each brand's own chart.

Men's sizes

9 of 21 shared men's US sizes have the same EU size. At men's US 9, Nike is EU 42.5 and Converse is EU 42.5.

Pink: Nike and Converse print a different EU size.

US	Nike UK	Nike EU	Nike cm	Converse UK	Converse EU	Converse cm
3	–	–	–	3	35	22
3.5	3	35.5	22.5	3.5	36	22.5
4	3.5	36	23	4	36.5	23
4.5	4	36.5	23.5	4.5	37	23.5
5	4.5	37.5	23.5	5	37.5	24
5.5	5	38	24	5.5	38	24.5
6	5.5	38.5	24	6	39	24.5
6.5	6	39	24.5	6.5	39.5	25
7	6	40	25	7	40	25.5
7.5	6.5	40.5	25.5	7.5	41	26
8	7	41	26	8	41.5	26.5
8.5	7.5	42	26.5	8.5	42	27
9	8	42.5	27	9	42.5	27.5
9.5	8.5	43	27.5	9.5	43	28
10	9	44	28	10	44	28.5
10.5	9.5	44.5	28.5	10.5	44.5	29
11	10	45	29	11	45	29.5
11.5	10.5	45.5	29.5	11.5	46	30
12	11	46	30	12	46.5	30.5
12.5	11.5	47	30.5	–	–	–
13	12	47.5	31	13	48	31.5
13.5	12.5	48	31.5	–	–	–
14	13	48.5	32	14	49	32
14.5	13.5	49	32.5	–	–	–
15	14	49.5	33	15	50	33
15.5	14.5	50	33.5	–	–	–
16	15	50.5	34	–	–	–
16.5	15.5	51	34.5	–	–	–
17	16	51.5	35	–	–	–
17.5	16.5	52	35.5	–	–	–
18	17	52.5	36	–	–	–
18.5	17.5	53	36.5	–	–	–
19	18	53.5	37	–	–	–
19.5	18.5	54	37.5	–	–	–
20	19	54.5	38	–	–	–
20.5	19.5	55	38.5	–	–	–
21	20	55.5	39	–	–	–
21.5	20.5	56	39.5	–	–	–
22	21	56.5	40	–	–	–

7 of 22 shared women's US sizes have the same EU size. At women's US 9, Nike is EU 40.5 and Converse is EU 40.

Pink: Nike and Converse print a different EU size.

US	Nike UK	Nike EU	Nike cm	Converse UK	Converse EU	Converse cm
3.5	1.5	33.5	21	–	–	–
4	1.5	34.5	21	–	–	–
4.5	2	35	21.5	–	–	–
5	2.5	35.5	22	3	35	22
5.5	3	36	22.5	3.5	36	22.5
6	3.5	36.5	23	4	36.5	23
6.5	4	37.5	23.5	4.5	37	23.5
7	4.5	38	24	5	37.5	24
7.5	5	38.5	24.5	5.5	38	24.5
8	5.5	39	25	6	39	24.5
8.5	6	40	25.5	6.5	39.5	25
9	6.5	40.5	26	7	40	25.5
9.5	7	41	26.5	7.5	41	26
10	7.5	42	27	8	41.5	26.5
10.5	8	42.5	27.5	8.5	42	27
11	8.5	43	28	9	42.5	27.5
11.5	9	44	28.5	9.5	43	28
12	9.5	44.5	29	10	44	28.5
12.5	10	45	29.5	10.5	44.5	29
13	10.5	45.5	30	11	45	29.5
13.5	11	46	30.5	11.5	46	30
14	11.5	47	31	12	46.5	30.5
14.5	12	47.5	31.5	–	–	–
15	12.5	48	32	13	48	31.5
15.5	13	48.5	32.5	–	–	–
16	13.5	49	33	14	49	32
16.5	14	50	33.5	–	–	–
17	14.5	50.5	34	15	50	33
17.5	15	51	34.5	–	–	–
18	15.5	51.5	35	–	–	–
18.5	16	52	35.5	–	–	–
19	16.5	52.5	36	–	–	–
19.5	17	53	36.5	–	–	–
20	17.5	53.5	37	–	–	–
20.5	18	54	37.5	–	–	–
21	18.5	54.5	38	–	–	–
21.5	19	55	38.5	–	–	–
22	19.5	55.5	39	–	–	–
22.5	20	56	39.5	–	–	–

Brands measure cm differently: some print the shoe's length, others your foot's length. We match brands by US size, never by cm.