| Hainichen to Opwijk | 388.84 mi (625.78 km) |
| Hainichen to Ostend | 442.83 mi (712.67 km) |
| Hainichen to Oud-Heverlee | 368.49 mi (593.03 km) |
| Hainichen to Oud-Turnhout | 353.57 mi (569.01 km) |
| Hainichen to Oudenaarde | 414.78 mi (667.52 km) |
| Hainichen to Oudenburg | 439.44 mi (707.21 km) |
| Hainichen to Oupeye | 326.83 mi (525.98 km) |
| Hainichen to Overijse | 374.60 mi (602.86 km) |
| Hainichen to Overpelt | 334.79 mi (538.79 km) |
| Hainichen to Paal | 345.62 mi (556.22 km) |
| Hainichen to Peer | 333.25 mi (536.31 km) |
| Hainichen to Pepinster | 320.45 mi (515.72 km) |
| Hainichen to Peruwelz | 418.07 mi (672.82 km) |
| Hainichen to Perwez | 363.52 mi (585.02 km) |
| Hainichen to Philippeville | 379.71 mi (611.09 km) |
