| Selargius to Opwijk | 844.40 mi (1,358.93 km) |
| Selargius to Ostend | 880.36 mi (1,416.81 km) |
| Selargius to Oud-Heverlee | 829.20 mi (1,334.47 km) |
| Selargius to Oud-Turnhout | 857.49 mi (1,379.99 km) |
| Selargius to Oudenaarde | 845.34 mi (1,360.44 km) |
| Selargius to Oudenburg | 876.32 mi (1,410.30 km) |
| Selargius to Oupeye | 809.64 mi (1,303.00 km) |
| Selargius to Overijse | 827.63 mi (1,331.94 km) |
| Selargius to Overpelt | 846.11 mi (1,361.67 km) |
| Selargius to Paal | 836.84 mi (1,346.76 km) |
| Selargius to Peer | 840.09 mi (1,352.00 km) |
| Selargius to Pepinster | 798.38 mi (1,284.86 km) |
| Selargius to Peruwelz | 824.11 mi (1,326.27 km) |
| Selargius to Perwez | 813.49 mi (1,309.18 km) |
| Selargius to Philippeville | 789.06 mi (1,269.86 km) |
