| Tarquinia to Opwijk | 700.58 mi (1,127.47 km) |
| Tarquinia to Ostend | 747.00 mi (1,202.18 km) |
| Tarquinia to Oud-Heverlee | 681.39 mi (1,096.59 km) |
| Tarquinia to Oud-Turnhout | 702.98 mi (1,131.34 km) |
| Tarquinia to Oudenaarde | 708.51 mi (1,140.23 km) |
| Tarquinia to Oudenburg | 742.55 mi (1,195.02 km) |
| Tarquinia to Oupeye | 652.30 mi (1,049.77 km) |
| Tarquinia to Overijse | 681.61 mi (1,096.95 km) |
| Tarquinia to Overpelt | 687.87 mi (1,107.02 km) |
| Tarquinia to Paal | 682.26 mi (1,097.98 km) |
| Tarquinia to Peer | 682.01 mi (1,097.59 km) |
| Tarquinia to Pepinster | 640.06 mi (1,030.08 km) |
| Tarquinia to Peruwelz | 690.49 mi (1,111.23 km) |
| Tarquinia to Perwez | 665.70 mi (1,071.34 km) |
| Tarquinia to Philippeville | 647.72 mi (1,042.40 km) |
