| Saint-Nicolas to Opwijk | 63.29 mi (101.86 km) |
| Saint-Nicolas to Ostend | 120.96 mi (194.66 km) |
| Saint-Nicolas to Oud-Heverlee | 40.34 mi (64.92 km) |
| Saint-Nicolas to Oud-Turnhout | 52.93 mi (85.19 km) |
| Saint-Nicolas to Oudenaarde | 85.84 mi (138.15 km) |
| Saint-Nicolas to Oudenburg | 116.72 mi (187.85 km) |
| Saint-Nicolas to Oupeye | 7.07 mi (11.38 km) |
| Saint-Nicolas to Overijse | 44.96 mi (72.36 km) |
| Saint-Nicolas to Overpelt | 40.63 mi (65.38 km) |
| Saint-Nicolas to Paal | 32.16 mi (51.75 km) |
| Saint-Nicolas to Peer | 34.69 mi (55.82 km) |
| Saint-Nicolas to Pepinster | 13.25 mi (21.33 km) |
| Saint-Nicolas to Peruwelz | 85.94 mi (138.31 km) |
| Saint-Nicolas to Perwez | 31.49 mi (50.68 km) |
| Saint-Nicolas to Philippeville | 52.63 mi (84.71 km) |
