| Bad Nenndorf to Opwijk | 241.93 mi (389.35 km) |
| Bad Nenndorf to Ostend | 286.46 mi (461.02 km) |
| Bad Nenndorf to Oud-Heverlee | 227.34 mi (365.88 km) |
| Bad Nenndorf to Oud-Turnhout | 200.45 mi (322.59 km) |
| Bad Nenndorf to Oudenaarde | 268.37 mi (431.91 km) |
| Bad Nenndorf to Oudenburg | 284.08 mi (457.19 km) |
| Bad Nenndorf to Oupeye | 196.05 mi (315.51 km) |
| Bad Nenndorf to Overijse | 234.11 mi (376.77 km) |
| Bad Nenndorf to Overpelt | 186.18 mi (299.63 km) |
| Bad Nenndorf to Paal | 201.19 mi (323.78 km) |
| Bad Nenndorf to Peer | 187.39 mi (301.58 km) |
| Bad Nenndorf to Pepinster | 196.12 mi (315.63 km) |
| Bad Nenndorf to Peruwelz | 279.44 mi (449.72 km) |
| Bad Nenndorf to Perwez | 229.21 mi (368.88 km) |
| Bad Nenndorf to Philippeville | 255.59 mi (411.33 km) |
