| Fountain Inn to Opwijk | 4,259.63 mi (6,855.21 km) |
| Fountain Inn to Ostend | 4,202.00 mi (6,762.47 km) |
| Fountain Inn to Oud-Heverlee | 4,282.61 mi (6,892.19 km) |
| Fountain Inn to Oud-Turnhout | 4,283.11 mi (6,893.00 km) |
| Fountain Inn to Oudenaarde | 4,238.81 mi (6,821.70 km) |
| Fountain Inn to Oudenburg | 4,206.29 mi (6,769.38 km) |
| Fountain Inn to Oupeye | 4,325.41 mi (6,961.07 km) |
| Fountain Inn to Overijse | 4,278.46 mi (6,885.51 km) |
| Fountain Inn to Overpelt | 4,303.08 mi (6,925.13 km) |
| Fountain Inn to Paal | 4,297.82 mi (6,916.68 km) |
| Fountain Inn to Peer | 4,306.72 mi (6,931.00 km) |
| Fountain Inn to Pepinster | 4,336.17 mi (6,978.39 km) |
| Fountain Inn to Peruwelz | 4,246.36 mi (6,833.86 km) |
| Fountain Inn to Perwez | 4,293.97 mi (6,910.48 km) |
| Fountain Inn to Philippeville | 4,294.02 mi (6,910.56 km) |
