| Campiglia Marittima to Opwijk | 623.76 mi (1,003.85 km) |
| Campiglia Marittima to Ostend | 668.98 mi (1,076.63 km) |
| Campiglia Marittima to Oud-Heverlee | 605.10 mi (973.81 km) |
| Campiglia Marittima to Oud-Turnhout | 627.94 mi (1,010.57 km) |
| Campiglia Marittima to Oudenaarde | 630.77 mi (1,015.13 km) |
| Campiglia Marittima to Oudenburg | 664.57 mi (1,069.52 km) |
| Campiglia Marittima to Oupeye | 577.53 mi (929.45 km) |
| Campiglia Marittima to Overijse | 605.04 mi (973.72 km) |
| Campiglia Marittima to Overpelt | 613.47 mi (987.28 km) |
| Campiglia Marittima to Paal | 607.13 mi (977.08 km) |
| Campiglia Marittima to Peer | 607.55 mi (977.75 km) |
| Campiglia Marittima to Pepinster | 565.42 mi (909.96 km) |
| Campiglia Marittima to Peruwelz | 612.29 mi (985.39 km) |
| Campiglia Marittima to Perwez | 589.33 mi (948.44 km) |
| Campiglia Marittima to Philippeville | 570.31 mi (917.82 km) |
