Sizing Guidelines

Here we have a suggest measurements guideline for you.
Shoes sizes: 
EU
A1
 UK
19 2
20 3
21 4
22 5
23 6
24 7
25 7.5
26 8
27 8.5
28 9
29 10
30 11
31 12
32 12.5
33 13
34 UK 1
35 UK 2
36 UK 3
37 UK 4
38 UK 5
39 UK 6
40 UK 6,5
41 UK 7
42 UK 7,5
  
Body measurements - baby (cm)
  Newborn 1 month 0-3 months 3-6 months 6-12 months 12-18 months 18-24 months
Height 50 56 62 68 80 86 92
Chest n/a n/a 43 45.5 49.5 50.75 52.5
Waist n/a n/a 43 45 48.75 49.75 50.5
Seat n/a n/a 42 44.75 50 51.5 53

Body measurements - toddler (cm) 

  0-3 months 3-6 months 6-12 months 12-18 months 18-24 m / 2 years up to 3 years up to 4 years up to 5 years
Height 62 68 80 86 92 98 104 110
Chest 43 45.5 49.5 50.75 52.5 54.25 56 58
Waist 43 45 48.75 49.75 50.5 52.5 54.5 55
Seat 42 44.75 50 51.5 53 56 60 62

 

Body measurements - girls (cm) 

  3 years 4 years 5 years 6 years 7 years 8 years 9 years 10-11 years
Height 98 104 110 116 122 128 134 146
Chest 54.25 56 58 60.5 63 65 68.25 74.75
Waist 52.5 54.5 55 56 57 58 60 63.5
Seat 56 60 62 64 66 70 73.5 80.5

Body measurements - boys (cm) 

  3 years 4 years 5 years 6 years 7 years 8 years 9 years 10-11 years
Height 98 104 110 116 122 128 134 146
Chest 54.25 56 58 60.5 63 64 67.5 74.5
Waist 52.5 54.5 55 56 57 59 61.25 65.75
Seat 56 60 62 64 66 68 71 77.5