| Ascoli Piceno to Opwijk | 713.92 mi (1,148.95 km) |
| Ascoli Piceno to Ostend | 764.63 mi (1,230.55 km) |
| Ascoli Piceno to Oud-Heverlee | 693.09 mi (1,115.43 km) |
| Ascoli Piceno to Oud-Turnhout | 710.23 mi (1,143.01 km) |
| Ascoli Piceno to Oudenaarde | 725.38 mi (1,167.39 km) |
| Ascoli Piceno to Oudenburg | 760.09 mi (1,223.24 km) |
| Ascoli Piceno to Oupeye | 659.44 mi (1,061.26 km) |
| Ascoli Piceno to Overijse | 694.31 mi (1,117.39 km) |
| Ascoli Piceno to Overpelt | 693.38 mi (1,115.89 km) |
| Ascoli Piceno to Paal | 690.07 mi (1,110.57 km) |
| Ascoli Piceno to Peer | 687.78 mi (1,106.88 km) |
| Ascoli Piceno to Pepinster | 647.04 mi (1,041.32 km) |
| Ascoli Piceno to Peruwelz | 709.58 mi (1,141.96 km) |
| Ascoli Piceno to Perwez | 677.92 mi (1,091.00 km) |
| Ascoli Piceno to Philippeville | 664.09 mi (1,068.74 km) |
