Men's 

UK Size	US Size	EUR	CM
5.5	6	38.5	24
6	6.5	39	24.5
6	7	40	25
6.5	7.5	40.5	25.5
7	8	41	26
7.5	8.5	42	26.5
8	9	42.5	27
8.5	9.5	43	27.5
9	10	44	28
9.5	10.5	44.5	28.5
10	11	45	29
10.5	11.5	45.5	29.5
11	12	46	30
12	13	47.5	31
13	14	48.5	32
14	15	49.5	33

 

Women's 

UK Size	US Size	EUR	CM
3.5	6	36.5	23
4	6.5	37.5	23.5
4.5	7	38	24
5	7.5	38.5	24.5
5.5	8	39	25
6	8.5	40	25.5
6.5	9	40.5	26
7	9.5	41	26.5
7.5	10	42	27
8	10.5	42.5	27.5
8.5	11	43	28
9	11.5	44	28.5
9.5	12	44.5	29

Junior

UK Size	US Size	EUR	CM
3	3.5Y	35.5	22
3.5	4Y	36	22.5
4	4.5Y	36.5	23
4.5	5Y	37.5	23.5
5	5.5Y	38	24
5.5	6Y	38.5	24.5
6	6.5Y	39	25
6.5	7Y	40	25.5

Children

UK Size	US Size	EUR	CM
10	10.5C	27.5	16.5
10.5	11C	28	17
11	11.5C	28.5	17.5
11.5	12C	29.5	18
12	12.5C	30	18.5
12.5	13C	31	19
13	13.5C	31.5	19.5
1	1.5Y	33	20.5
1.5	2Y	33.5	21
2	2.5Y	34	21.5
2.5	3Y	35	22