US Sizes	Euro Sizes	UK Sizes	Inches	CM
4	35	2	8.1875"	20.8
4.5	35	2.5	8.375"	21.3
5	35-36	3	8.5"	21.6
5.5	36	3.5	8.75"	22.2
6	36-37	4	8.875"	22.5
6.5	37	4.5	9.0625"	23
7	37-38	5	9.25"	23.5
7.5	38	5.5	9.375"	23.8
8	38-39	6	9.5"	24.1
8.5	39	6.5	9.6875"	24.6
9	39-40	7	9.875"	25.1
9.5	40	7.5	10"	25.4
10	40-41	8	10.1875"	25.9
10.5	41	8.5	10.3125"	26.2
11	41-42	9	10.5"	26.7
11.5	42	9.5	10.6875"	27.1
12	42-43	10	10.875"	27.6

US Sizes	Euro Sizes	UK Sizes	Inches	CM
6	39	5.5	9.25"	23.5
6.5	39	6	9.5"	24.1
7	40	6.5	9.625"	24.4
7.5	40-41	7	9.75"	24.8
8	41	7.5	9.9375"	25.4
8.5	41-42	8	10.125"	25.7
9	42	8.5	10.25"	26
9.5	42-43	9	10.4375"	26.7
10	43	9.5	10.5625"	27
10.5	43-44	10	10.75"	27.3
11	44	10.5	10.9375"	27.9
11.5	44-45	11	11.125"	28.3
12	45	11.5	11.25"	28.6
13	46	12.5	11.5625"	29.4
14	47	13.5	11.875"	30.2
15	48	14.5	12.1875"	31
16	49	15.5	12.5"	31.8