| Oldebroek to Opwijk | 126.11 mi (202.95 km) |
| Oldebroek to Ostend | 152.78 mi (245.87 km) |
| Oldebroek to Oud-Heverlee | 123.58 mi (198.89 km) |
| Oldebroek to Oud-Turnhout | 87.52 mi (140.85 km) |
| Oldebroek to Oudenaarde | 148.12 mi (238.37 km) |
| Oldebroek to Oudenburg | 151.65 mi (244.05 km) |
| Oldebroek to Oupeye | 120.84 mi (194.48 km) |
| Oldebroek to Overijse | 129.22 mi (207.96 km) |
| Oldebroek to Overpelt | 87.68 mi (141.10 km) |
| Oldebroek to Paal | 102.32 mi (164.67 km) |
| Oldebroek to Peer | 92.99 mi (149.65 km) |
| Oldebroek to Pepinster | 130.17 mi (209.49 km) |
| Oldebroek to Peruwelz | 166.65 mi (268.20 km) |
| Oldebroek to Perwez | 134.50 mi (216.45 km) |
| Oldebroek to Philippeville | 166.02 mi (267.18 km) |
