| Diameeter (mm) | EU mõõdud | US mõõdud | Itaalia mõõdud | UK mõõdud |
|---|---|---|---|---|
| 15.0 | 47.1 | 4 | 7 | H |
| 15.5 | 48.7 | 4 1/2 | 9 | I 1/2 |
| 16.0 | 50.3 | 5 1/4 | 10 | K |
| 16.5 | 51.8 | 6 | 12 | L 1/2 |
| 17.0 | 53.4 | 6 1/2 | 13 | M 1/2 |
| 17.5 | 55.0 | 7 1/4 | 15 | O |
| 18.0 | 56.5 | 8 | 17 | P |
| 18.5 | 58.1 | 8 1/2 | 18 | Q 1/2 |
| 19.0 | 59.7 | 9 1/2 | 20 | S |
| 19.5 | 61.3 | 10 | 21 | T |
| 20.0 | 62.8 | 10 3/4 | 23 | U |
| 20.5 | 64.4 | 11 1/2 | 24 | W |
| 21.0 | 66.0 | 12 | 26 | W 1/2 |
| 21.5 | 67.5 | 12 1/2 | 28 | Y |
| 22.0 | 69.1 | 13 | 29 | Z |
| 22.5 | 70.7 | 13 1/2 | 31 | Z+1 |
| 23.0 | 72.3 | 14 | 32 | Z+2 |
| 23.5 | 73.8 | 14 3/4 | 34 | Z+4 |
| 24.0 | 75.4 | 15 1/4 | 35 | Z+5 |
| 24.5 | 77.0 | 16 | 37 | Z+6 |
| 25.0 | 78.5 | 16 1/2 | 39 | Z+7 |