Size Conversion Chart (1 inch=2.54 cm)
AU Size	US Size	UK Size	EUR Size	Length (cm)
2	2	0.5	32	21.0
2.5	3	1	33	21.5
3.5	4	1.5	34	22.0
4.5	5	2.5	35	22.5
5	6	3.5	36	23.0
6	6.5	4	37	23.5
7	7	5	38	24.0
7.5	8	6	39	24.5
8	9	6.5	40	25.0
8.5	9.5	7	41	25.5
9	10	7.5	42	26.0
10	10.5	8	43	26.5
10.5	11	9	44	27.0
11	12	10	45	27.5
12	12.5	10.5	46	28.0
12.5	13.5	11.5	47	28.5
13.5	14	12	48	29.0
14	14.5	12.5	49	29.5
14.5	15	13	50	30.0