| Codlea to Opwijk | 1,037.77 mi (1,670.13 km) |
| Codlea to Ostend | 1,095.12 mi (1,762.43 km) |
| Codlea to Oud-Heverlee | 1,015.22 mi (1,633.85 km) |
| Codlea to Oud-Turnhout | 1,009.64 mi (1,624.86 km) |
| Codlea to Oudenaarde | 1,061.03 mi (1,707.56 km) |
| Codlea to Oudenburg | 1,091.12 mi (1,755.98 km) |
| Codlea to Oupeye | 971.71 mi (1,563.81 km) |
| Codlea to Overijse | 1,020.19 mi (1,641.83 km) |
| Codlea to Overpelt | 989.76 mi (1,592.87 km) |
| Codlea to Paal | 996.98 mi (1,604.48 km) |
| Codlea to Peer | 986.75 mi (1,588.02 km) |
| Codlea to Pepinster | 962.09 mi (1,548.33 km) |
| Codlea to Peruwelz | 1,057.56 mi (1,701.97 km) |
| Codlea to Perwez | 1,005.86 mi (1,618.77 km) |
| Codlea to Philippeville | 1,011.83 mi (1,628.38 km) |
