| Tornio to Opwijk | 1,244.87 mi (2,003.42 km) |
| Tornio to Ostend | 1,254.44 mi (2,018.82 km) |
| Tornio to Oud-Heverlee | 1,243.71 mi (2,001.55 km) |
| Tornio to Oud-Turnhout | 1,207.68 mi (1,943.57 km) |
| Tornio to Oudenaarde | 1,263.61 mi (2,033.58 km) |
| Tornio to Oudenburg | 1,255.37 mi (2,020.32 km) |
| Tornio to Oupeye | 1,233.03 mi (1,984.37 km) |
| Tornio to Overijse | 1,249.38 mi (2,010.69 km) |
| Tornio to Overpelt | 1,205.58 mi (1,940.19 km) |
| Tornio to Paal | 1,221.24 mi (1,965.39 km) |
| Tornio to Peer | 1,210.10 mi (1,947.46 km) |
| Tornio to Pepinster | 1,238.70 mi (1,993.50 km) |
| Tornio to Peruwelz | 1,284.45 mi (2,067.13 km) |
| Tornio to Perwez | 1,253.86 mi (2,017.89 km) |
| Tornio to Philippeville | 1,285.32 mi (2,068.53 km) |
