US Sizes	UK Sizes	Euro Sizes	Inches Long	CM Long
7D	7	40	9.84	25
7.5D	7.5	40.5	9.92	25.2
8D	8	41	10.24	26
8.5D	8.5	41.5	10.31	26.2
9D	9	42	10.63	27
9.5D	9.5	42.5	10.71	27.2
10D	10	43	11.02	28
10.5D	10.5	43.5	11.1	28.2
11D	11	44	11.42	29
11.5D	11.5	44.5	11.5	29.2
12D	12	45	11.81	30
12.5D	12.5	45.5	11.89	30.2
13D	13	46	12.2	31