Smiley Sizing Chart
| Age | USA | UK | EU | cm | inch |
| 12 - 16 months | 5 | 4 | 20 | 13 | 5.1 |
| 16 - 20 months | 6 | 5 | 22 | 14 | 5.5 |
| 20 - 24 months | 7 | 6 | 23 | 14.8 | 5.8 |
| 24 - 28 months | 8 | 7 | 24 | 15.5 | 6.1 |
Alternatively, you can print out the Shoo Shoos Sizing Chart for reference.
| Age | USA | UK | EU | cm | inch |
| 12 - 16 months | 5 | 4 | 20 | 13 | 5.1 |
| 16 - 20 months | 6 | 5 | 22 | 14 | 5.5 |
| 20 - 24 months | 7 | 6 | 23 | 14.8 | 5.8 |
| 24 - 28 months | 8 | 7 | 24 | 15.5 | 6.1 |
Alternatively, you can print out the Shoo Shoos Sizing Chart for reference.