| US - Women | US - Men | US - Kids | UK | EU | CM / JP | Foot Length (in) |
|---|---|---|---|---|---|---|
| 3.5 | 2 | 2Y | 1.5 | 33.5 | 21 | 8 3/16 |
| 4 | 2.5 | 2.5Y | 1.5 | 34.5 | 21 | 8 5/16 |
| 4.5 | 3 | 3Y | 2 | 35 | 21.5 | 8 1/2 |
| 5 | 3.5 | 3.5Y | 2.5 | 35.5 | 22 | 8 11/16 |
| 5.5 | 4 | 4Y | 3 | 36 | 22.5 | 8 13/16 |
| 6 | 4.5 | 4.5Y | 3.5 | 36.5 | 23 | 9 |
| 6.5 | 5 | 5Y | 4 | 37.5 | 23.5 | 9 3/16 |
| 7 | 5.5 | 5.5Y | 4.5 | 38 | 24 | 9 5/16 |
| 7.5 | 6 | 6Y | 5 | 38.5 | 24.5 | 9 1/2 |
| 8 | 6.5 | 6.5Y | 5.5 | 39 | 25 | 9 11/16 |
| 8.5 | 7 | 7Y | 6 | 40 | 25.5 | 9 13/16 |
| 9 | 7.5 | -- | 6.5 | 40.5 | 26 | 10 |
| 9.5 | 8 | -- | 7 | 41 | 26.5 | 10 3/16 |
| 10 | 8.5 | -- | 7.5 | 42 | 27 | 10 5/16 |
| 10.5 | 9 | -- | 8 | 42.5 | 27.5 | 10 1/2 |
| 11 | 9.5 | -- | 8.5 | 43 | 28 | 10 11/16 |
| 11.5 | 10 | -- | 9 | 44 | 28.5 | 10 13/16 |
| 12 | 10.5 | -- | 9.5 | 44.5 | 29 | 11 |
| 12.5 | 11 | -- | 10 | 45 | 29.5 | 11 3/16 |
| 13 | 11.5 | -- | 10.5 | 45.5 | 30 | 11 5/16 |
| 13.5 | 12 | -- | 11 | 46 | 30.5 | 11 1/2 |
| 14 | 12.5 | -- | 11.5 | 47 | 31 | 11 11/16 |
| 14.5 | 13 | -- | 12 | 47.5 | 31.5 | 11 13/16 |
| 15 | 13.5 | -- | 12.5 | 48 | 32 | 12 |
| 15.5 | 14 | -- | 13 | 48.5 | 32.5 | 12 3/16 |
| 16 | 14.5 | -- | 13.5 | 49 | 33 | 12 5/16 |
| 16.5 | 15 | -- | 14 | 50 | 33.5 | 12 1/2 |
| 17 | 15.5 | -- | 14.5 | 50.5 | 34 | 12 11/16 |
| 17.5 | 16 | -- | 15 | 51 | 34.5 | -- |
| 18 | 16.5 | -- | 15.5 | 51.5 | 35 | -- |
| 18.5 | 17 | -- | 16 | 52 | 35.5 | -- |
| 19 | 17.5 | -- | 16.5 | 52.5 | 36 | -- |
| 19.5 | 18 | -- | 17 | 53 | 36.5 | -- |
| 20 | 18.5 | -- | 17.5 | 53.5 | 37 | -- |
| 20.5 | 19 | -- | 18 | 54 | 37.5 | -- |
| 21 | 19.5 | -- | 18.5 | 54.5 | 38 | -- |
| 21.5 | 20 | -- | 19 | 55 | 38.5 | -- |
| 22 | 20.5 | -- | 19.5 | 55.5 | 39 | -- |
| 22.5 | 21 | -- | 20 | 56 | 39.5 | -- |
