| Notre-Dame-de-Gravenchon to Opwijk | 189.48 mi (304.93 km) |
| Notre-Dame-de-Gravenchon to Ostend | 158.45 mi (255.00 km) |
| Notre-Dame-de-Gravenchon to Oud-Heverlee | 203.65 mi (327.74 km) |
| Notre-Dame-de-Gravenchon to Oud-Turnhout | 231.67 mi (372.84 km) |
| Notre-Dame-de-Gravenchon to Oudenaarde | 163.71 mi (263.47 km) |
| Notre-Dame-de-Gravenchon to Oudenburg | 158.65 mi (255.32 km) |
| Notre-Dame-de-Gravenchon to Oupeye | 240.00 mi (386.24 km) |
| Notre-Dame-de-Gravenchon to Overijse | 196.90 mi (316.88 km) |
| Notre-Dame-de-Gravenchon to Overpelt | 244.63 mi (393.70 km) |
| Notre-Dame-de-Gravenchon to Paal | 229.68 mi (369.63 km) |
| Notre-Dame-de-Gravenchon to Peer | 243.47 mi (391.82 km) |
| Notre-Dame-de-Gravenchon to Pepinster | 244.38 mi (393.30 km) |
| Notre-Dame-de-Gravenchon to Peruwelz | 151.43 mi (243.70 km) |
| Notre-Dame-de-Gravenchon to Perwez | 203.90 mi (328.14 km) |
| Notre-Dame-de-Gravenchon to Philippeville | 183.93 mi (296.01 km) |
