| Hohr-Grenzhausen to Opwijk | 156.97 mi (252.63 km) |
| Hohr-Grenzhausen to Ostend | 214.40 mi (345.05 km) |
| Hohr-Grenzhausen to Oud-Heverlee | 134.50 mi (216.46 km) |
| Hohr-Grenzhausen to Oud-Turnhout | 132.06 mi (212.53 km) |
| Hohr-Grenzhausen to Oudenaarde | 180.65 mi (290.72 km) |
| Hohr-Grenzhausen to Oudenburg | 210.35 mi (338.53 km) |
| Hohr-Grenzhausen to Oupeye | 90.97 mi (146.40 km) |
| Hohr-Grenzhausen to Overijse | 139.66 mi (224.76 km) |
| Hohr-Grenzhausen to Overpelt | 112.23 mi (180.62 km) |
| Hohr-Grenzhausen to Paal | 116.94 mi (188.20 km) |
| Hohr-Grenzhausen to Peer | 108.20 mi (174.13 km) |
| Hohr-Grenzhausen to Pepinster | 82.00 mi (131.97 km) |
| Hohr-Grenzhausen to Peruwelz | 179.81 mi (289.38 km) |
| Hohr-Grenzhausen to Perwez | 126.11 mi (202.96 km) |
| Hohr-Grenzhausen to Philippeville | 138.64 mi (223.12 km) |
