| Porterville to Opwijk | 5,508.34 mi (8,864.81 km) |
| Porterville to Ostend | 5,457.43 mi (8,782.88 km) |
| Porterville to Oud-Heverlee | 5,529.48 mi (8,898.84 km) |
| Porterville to Oud-Turnhout | 5,514.42 mi (8,874.60 km) |
| Porterville to Oudenaarde | 5,496.65 mi (8,846.00 km) |
| Porterville to Oudenburg | 5,461.96 mi (8,790.18 km) |
| Porterville to Oupeye | 5,564.77 mi (8,955.64 km) |
| Porterville to Overijse | 5,528.03 mi (8,896.50 km) |
| Porterville to Overpelt | 5,532.21 mi (8,903.23 km) |
| Porterville to Paal | 5,534.06 mi (8,906.21 km) |
| Porterville to Peer | 5,537.56 mi (8,911.85 km) |
| Porterville to Pepinster | 5,577.13 mi (8,975.52 km) |
| Porterville to Peruwelz | 5,512.77 mi (8,871.94 km) |
| Porterville to Perwez | 5,544.48 mi (8,922.98 km) |
| Porterville to Philippeville | 5,557.95 mi (8,944.65 km) |
