| Civita Castellana to Opwijk | 714.03 mi (1,149.12 km) |
| Civita Castellana to Ostend | 761.85 mi (1,226.08 km) |
| Civita Castellana to Oud-Heverlee | 694.30 mi (1,117.36 km) |
| Civita Castellana to Oud-Turnhout | 714.56 mi (1,149.98 km) |
| Civita Castellana to Oudenaarde | 723.05 mi (1,163.64 km) |
| Civita Castellana to Oudenburg | 757.36 mi (1,218.86 km) |
| Civita Castellana to Oupeye | 663.72 mi (1,068.16 km) |
| Civita Castellana to Overijse | 694.82 mi (1,118.21 km) |
| Civita Castellana to Overpelt | 698.88 mi (1,124.73 km) |
| Civita Castellana to Paal | 693.97 mi (1,116.83 km) |
| Civita Castellana to Peer | 693.08 mi (1,115.41 km) |
| Civita Castellana to Pepinster | 651.41 mi (1,048.34 km) |
| Civita Castellana to Peruwelz | 705.66 mi (1,135.66 km) |
| Civita Castellana to Perwez | 678.73 mi (1,092.31 km) |
| Civita Castellana to Philippeville | 661.97 mi (1,065.34 km) |
