| Marienberg to Opwijk | 392.00 mi (630.86 km) |
| Marienberg to Ostend | 447.03 mi (719.43 km) |
| Marienberg to Oud-Heverlee | 371.04 mi (597.13 km) |
| Marienberg to Oud-Turnhout | 358.23 mi (576.51 km) |
| Marienberg to Oudenaarde | 417.54 mi (671.96 km) |
| Marienberg to Oudenburg | 443.49 mi (713.72 km) |
| Marienberg to Oupeye | 328.62 mi (528.87 km) |
| Marienberg to Overijse | 376.95 mi (606.64 km) |
| Marienberg to Overpelt | 339.04 mi (545.64 km) |
| Marienberg to Paal | 349.04 mi (561.73 km) |
| Marienberg to Peer | 337.11 mi (542.53 km) |
| Marienberg to Pepinster | 321.51 mi (517.42 km) |
| Marienberg to Peruwelz | 419.56 mi (675.22 km) |
| Marienberg to Perwez | 365.12 mi (587.61 km) |
| Marienberg to Philippeville | 379.59 mi (610.89 km) |
