Each item has an individual size chart on the product page.

Size	European	UK	USA	Australia
0 YEARS	50/56	0-2 months	0-3 months	00
0-½ YEARS	62/68	2-6 months	3-9 months	00
½-1 YEAR	74/80	6-12 months	9-18 months	1
1-2 YEARS	86/92	24 months	2T	2
2-4 YEARS	98/104	3-4 years	4T	4
4-6 YEARS	110/116	5-6 years	6T	6
6-8 YEARS	122/128	7-8 years	8T	8
8-10 YEARS	134/140	8-10 years	10T	10
10-12 YEARS	146/152	10-12 years	12T	12
12-14 YEARS	158/164	12-14 years	14T	14
XS	36	8	4	8
S	38	10	6	10
M	40	12	8	12
L	42	14	10	14
XL	44	16	12	16