| Harelbeke to Ostend | 30.71 mi (49.42 km) |
| Harelbeke to Oud-Heverlee | 59.07 mi (95.07 km) |
| Harelbeke to Oud-Turnhout | 79.15 mi (127.37 km) |
| Harelbeke to Oudenaarde | 12.52 mi (20.15 km) |
| Harelbeke to Oudenburg | 26.35 mi (42.41 km) |
| Harelbeke to Oupeye | 102.30 mi (164.63 km) |
| Harelbeke to Overijse | 53.50 mi (86.10 km) |
| Harelbeke to Overpelt | 94.72 mi (152.43 km) |
| Harelbeke to Paal | 81.93 mi (131.85 km) |
| Harelbeke to Peer | 95.01 mi (152.91 km) |
| Harelbeke to Pepinster | 111.35 mi (179.20 km) |
| Harelbeke to Peruwelz | 26.30 mi (42.33 km) |
| Harelbeke to Perwez | 67.61 mi (108.80 km) |
| Harelbeke to Philippeville | 70.78 mi (113.91 km) |
| Harelbeke to Plombieres | 115.47 mi (185.83 km) |
