| Petrovaradin to Opwijk | 822.00 mi (1,322.88 km) |
| Petrovaradin to Ostend | 879.55 mi (1,415.51 km) |
| Petrovaradin to Oud-Heverlee | 799.01 mi (1,285.88 km) |
| Petrovaradin to Oud-Turnhout | 800.26 mi (1,287.90 km) |
| Petrovaradin to Oudenaarde | 842.60 mi (1,356.03 km) |
| Petrovaradin to Oudenburg | 875.24 mi (1,408.56 km) |
| Petrovaradin to Oupeye | 756.47 mi (1,217.41 km) |
| Petrovaradin to Overijse | 803.05 mi (1,292.38 km) |
| Petrovaradin to Overpelt | 780.39 mi (1,255.92 km) |
| Petrovaradin to Paal | 784.64 mi (1,262.75 km) |
| Petrovaradin to Peer | 776.41 mi (1,249.51 km) |
| Petrovaradin to Pepinster | 745.51 mi (1,199.79 km) |
| Petrovaradin to Peruwelz | 835.31 mi (1,344.30 km) |
| Petrovaradin to Perwez | 787.46 mi (1,267.29 km) |
| Petrovaradin to Philippeville | 787.81 mi (1,267.87 km) |
