US Men	US Women	EU	Length (cm)	Length (in)
2.5	4	34	21	8 1/4
3	4.5	34.5	21.3	8 3/8
3.5	5	35	21.5	8 9/16
4	5.5	36	22	8 3/4
4.5	6	37	22.5	8 7/8
5	6.5	37.5	23	9 1/16
5.5	7	38	23..5	9 1/4
6	7.5	38.5	24	9 3/8
6.5	8	39.5	24.3	9 9/16
7	8.5	40	24.5	9 11/16
7.5	9	40.5	25	9 7/8
8	9.5	41.5	25.5	10 1/16
8.5	10	42	26	10 3/16
9	10.5	42.5	26.5	10 3/8
9.5	11	43	26.8	10 9/16
10	11.5	44	27	10 11/16
10.5	12	44.5	27.5	10 7/8
11	12.5	45	28	11 1/16
11.5	13	45.5	28.5	11 3/16
12	13.5	46.5	29	11 3/8
12.5	14	47	29.5	11 9/16
13	14.5	47.5	29.8	11 11/16
14	–	49	30.5	12 1/16
15	–	50	31.5	12 3/8
16	–	51	32.3	12 11/16
17	–	52	33	13 1/16
18	–	53	34	13 3/8
19	–	54	35	13 11/16
20	–	55	35.5	14 1/16