| Altenberge to Opwijk | 159.61 mi (256.86 km) |
| Altenberge to Ostend | 202.97 mi (326.65 km) |
| Altenberge to Oud-Heverlee | 146.77 mi (236.20 km) |
| Altenberge to Oud-Turnhout | 117.65 mi (189.34 km) |
| Altenberge to Oudenaarde | 185.79 mi (299.00 km) |
| Altenberge to Oudenburg | 200.59 mi (322.82 km) |
| Altenberge to Oupeye | 121.30 mi (195.22 km) |
| Altenberge to Overijse | 153.51 mi (247.06 km) |
| Altenberge to Overpelt | 104.88 mi (168.79 km) |
| Altenberge to Paal | 120.58 mi (194.05 km) |
| Altenberge to Peer | 106.94 mi (172.10 km) |
| Altenberge to Pepinster | 124.55 mi (200.45 km) |
| Altenberge to Peruwelz | 198.23 mi (319.01 km) |
| Altenberge to Perwez | 150.77 mi (242.65 km) |
| Altenberge to Philippeville | 179.55 mi (288.96 km) |
