| Hoeilaart to Ostend | 74.39 mi (119.71 km) |
| Hoeilaart to Oud-Heverlee | 9.87 mi (15.89 km) |
| Hoeilaart to Oud-Turnhout | 44.13 mi (71.03 km) |
| Hoeilaart to Oudenaarde | 38.28 mi (61.60 km) |
| Hoeilaart to Oudenburg | 70.00 mi (112.65 km) |
| Hoeilaart to Oupeye | 51.60 mi (83.04 km) |
| Hoeilaart to Overijse | 3.13 mi (5.03 km) |
| Hoeilaart to Overpelt | 51.71 mi (83.21 km) |
| Hoeilaart to Paal | 36.07 mi (58.05 km) |
| Hoeilaart to Peer | 49.85 mi (80.23 km) |
| Hoeilaart to Pepinster | 60.71 mi (97.71 km) |
| Hoeilaart to Peruwelz | 42.39 mi (68.21 km) |
| Hoeilaart to Perwez | 18.15 mi (29.21 km) |
| Hoeilaart to Philippeville | 39.33 mi (63.29 km) |
| Hoeilaart to Plombieres | 64.88 mi (104.42 km) |
