| Fountain to Opwijk | 4,901.30 mi (7,887.88 km) |
| Fountain to Ostend | 4,847.12 mi (7,800.68 km) |
| Fountain to Oud-Heverlee | 4,923.49 mi (7,923.60 km) |
| Fountain to Oud-Turnhout | 4,913.16 mi (7,906.97 km) |
| Fountain to Oudenaarde | 4,886.40 mi (7,863.91 km) |
| Fountain to Oudenburg | 4,851.67 mi (7,808.01 km) |
| Fountain to Oupeye | 4,961.99 mi (7,985.54 km) |
| Fountain to Overijse | 4,921.13 mi (7,919.79 km) |
| Fountain to Overpelt | 4,932.05 mi (7,937.37 km) |
| Fountain to Paal | 4,931.63 mi (7,936.69 km) |
| Fountain to Peer | 4,936.96 mi (7,945.27 km) |
| Fountain to Pepinster | 4,974.09 mi (8,005.02 km) |
| Fountain to Peruwelz | 4,900.10 mi (7,885.95 km) |
| Fountain to Perwez | 4,937.63 mi (7,946.35 km) |
| Fountain to Philippeville | 4,947.04 mi (7,961.49 km) |
