Unisex

UK	EU	US
3	35	3
3.5	36	3.5
4	36.5	4
4.5	37	4.5
5	37.5	5
5.5	38	5.5
6	39	6
6.5	39.5	6.5
7	40	7
7.5	41	7.5
8	41.5	8
8.5	42	8.5
9	42.5	9
9.5	43	9.5
10	44	10
10.5	44.5	10.5
11	45	11
11.5	46	11.5
12	46.5	12
13	47.5	13
14	48.5	14
15	49.5	15
16	50.5	16

Womens

UK	EU	US
3	35	5
4	36.5	6
5	37.5	7
6	39	8
7	40	9
8	41.5	10
9	42.5	11
10	43.5	12
11	44.5	13

Toddlers

UK	UK	EU
2	18	2
3	19	3
4	20	4
5	21	5
6	22	6
7	23	7
8	24	8
9	25	9
10	26	10

Youths-Juniors

UK	UK	EU
10	27	10.5
11	28.5	11.5
12	30	12.5
13	31.5	13.5
1	33	1.5
2	34	2.5
3	35.5	3.5
4	37	34.5
5	38	5.5