| Montabaur to Opwijk | 163.52 mi (263.16 km) |
| Montabaur to Ostend | 220.88 mi (355.48 km) |
| Montabaur to Oud-Heverlee | 141.10 mi (227.08 km) |
| Montabaur to Oud-Turnhout | 138.00 mi (222.09 km) |
| Montabaur to Oudenaarde | 187.31 mi (301.44 km) |
| Montabaur to Oudenburg | 216.86 mi (349.00 km) |
| Montabaur to Oupeye | 97.59 mi (157.05 km) |
| Montabaur to Overijse | 146.31 mi (235.47 km) |
| Montabaur to Overpelt | 118.12 mi (190.09 km) |
| Montabaur to Paal | 123.22 mi (198.31 km) |
| Montabaur to Peer | 114.21 mi (183.81 km) |
| Montabaur to Pepinster | 88.74 mi (142.81 km) |
| Montabaur to Peruwelz | 186.60 mi (300.30 km) |
| Montabaur to Perwez | 132.85 mi (213.81 km) |
| Montabaur to Philippeville | 145.44 mi (234.06 km) |
