| Marousi to Opwijk | 1,307.98 mi (2,104.99 km) |
| Marousi to Ostend | 1,363.29 mi (2,194.00 km) |
| Marousi to Oud-Heverlee | 1,285.49 mi (2,068.80 km) |
| Marousi to Oud-Turnhout | 1,294.54 mi (2,083.36 km) |
| Marousi to Oudenaarde | 1,324.26 mi (2,131.19 km) |
| Marousi to Oudenburg | 1,358.76 mi (2,186.71 km) |
| Marousi to Oupeye | 1,246.15 mi (2,005.49 km) |
| Marousi to Overijse | 1,288.20 mi (2,073.15 km) |
| Marousi to Overpelt | 1,275.53 mi (2,052.76 km) |
| Marousi to Paal | 1,276.34 mi (2,054.07 km) |
| Marousi to Peer | 1,270.68 mi (2,044.97 km) |
| Marousi to Pepinster | 1,234.16 mi (1,986.18 km) |
| Marousi to Peruwelz | 1,312.10 mi (2,111.63 km) |
| Marousi to Perwez | 1,271.77 mi (2,046.71 km) |
| Marousi to Philippeville | 1,264.52 mi (2,035.04 km) |
