As a guidance, you should choose skates in one size bigger than your usual shoe size. It is optimal if the sole is up to 5mm longer than your foot.
The chart is for guidance only. It shows the length of the sole, i.e. the inside of the skate.
For Seba FR models:
| Sole length (mm) | Size (EU) | Size (UK) |
| 226 | 34 | 2 |
| 231 | 35 | 3 |
| 233 | 36 | 3.5 |
| 236 | 37 | 4 |
| 245 | 38 | 5 |
| 253 | 39 | 6 |
| 261 | 40 | 6.5 |
| 265 | 41 | 7 |
| 270 | 42 | 8 |
| 279 | 43 | 9 |
| 285 | 44 | 9.5 |
| 294 | 45 | 10 |
| 300 | 46 | 11 |
| 306 | 47 | 12 |
For Seba High, Deluxe, Carbon, Igor and GT models:
| Sole length (mm) | Size (EU) | Size (UK) |
| 221 | 34 | 2 |
| 229 | 35 | 3 |
| 233 | 36 | 3.5 |
| 237 | 37 | 4 |
| 245 | 38 | 5 |
| 250 | 39 | 6 |
| 257 | 40 | 6.5 |
| 265 | 41 | 7 |
| 270 | 42 | 8 |
| 275 | 43 | 9 |
| 281 | 44 | 9.5 |
| 286 | 45 | 10 |
| 290 | 46 | 11 |
| 295 | 47 | 12 |