| Centennial to Opwijk | 4,859.10 mi (7,819.96 km) |
| Centennial to Ostend | 4,805.17 mi (7,733.18 km) |
| Centennial to Oud-Heverlee | 4,881.22 mi (7,855.56 km) |
| Centennial to Oud-Turnhout | 4,870.45 mi (7,838.24 km) |
| Centennial to Oudenaarde | 4,844.49 mi (7,796.45 km) |
| Centennial to Oudenburg | 4,809.73 mi (7,740.52 km) |
| Centennial to Oupeye | 4,919.45 mi (7,917.09 km) |
| Centennial to Overijse | 4,878.93 mi (7,851.88 km) |
| Centennial to Overpelt | 4,889.26 mi (7,868.50 km) |
| Centennial to Paal | 4,889.04 mi (7,868.15 km) |
| Centennial to Peer | 4,894.21 mi (7,876.48 km) |
| Centennial to Pepinster | 4,931.59 mi (7,936.62 km) |
| Centennial to Peruwelz | 4,858.42 mi (7,818.87 km) |
| Centennial to Perwez | 4,895.44 mi (7,878.46 km) |
| Centennial to Philippeville | 4,905.23 mi (7,894.21 km) |
