Here is a standard size chart for children 9 months to 7 years old.
| US | 1 | 2 | 3 | 4 | 5 | 6 |
| UK (AGE) | 9-18 months | 2-3 years | 3-4 years | 4-5 years | 5-6 years | 6-7 years |
| EU(HEIGHT) | 86cm | 98cm | 104cm | 110cm | 116cm | 120cm |
| WEIGHT | 17-26 lbs | 26-29 lbs | 29-32 lbs | 33-36 lbs | 37-40 lbs | 41-44 lbs |
| CHEST | 20-21 in | 21-22 in | 22-23 in | 23-24 in | 24-25 in | 25-26 in |
| WAIST | 19-20 in | 20-21 in | 21-22 in | 22-23 in | 23-24 in | 24-25 in |
| FINISHED LENGTH (SHOULDER-HEM) | 17-19 in | 20-21 in | 21-22 in | 22-23 in | 23-24 in | 24-25 in |