| Ganshoren to Ostend | 65.57 mi (105.53 km) |
| Ganshoren to Oud-Heverlee | 15.44 mi (24.85 km) |
| Ganshoren to Oud-Turnhout | 42.47 mi (68.34 km) |
| Ganshoren to Oudenaarde | 31.28 mi (50.34 km) |
| Ganshoren to Oudenburg | 61.26 mi (98.59 km) |
| Ganshoren to Oupeye | 58.96 mi (94.89 km) |
| Ganshoren to Overijse | 11.07 mi (17.82 km) |
| Ganshoren to Overpelt | 53.56 mi (86.19 km) |
| Ganshoren to Paal | 39.12 mi (62.96 km) |
| Ganshoren to Peer | 52.74 mi (84.88 km) |
| Ganshoren to Pepinster | 68.81 mi (110.75 km) |
| Ganshoren to Peruwelz | 40.19 mi (64.68 km) |
| Ganshoren to Perwez | 27.49 mi (44.24 km) |
| Ganshoren to Philippeville | 47.19 mi (75.95 km) |
| Ganshoren to Plombieres | 71.92 mi (115.74 km) |
