| Bad Neuenahr-Ahrweiler to Opwijk | 131.34 mi (211.37 km) |
| Bad Neuenahr-Ahrweiler to Ostend | 188.74 mi (303.75 km) |
| Bad Neuenahr-Ahrweiler to Oud-Heverlee | 108.93 mi (175.30 km) |
| Bad Neuenahr-Ahrweiler to Oud-Turnhout | 106.99 mi (172.19 km) |
| Bad Neuenahr-Ahrweiler to Oudenaarde | 155.18 mi (249.74 km) |
| Bad Neuenahr-Ahrweiler to Oudenburg | 184.70 mi (297.24 km) |
| Bad Neuenahr-Ahrweiler to Oupeye | 65.42 mi (105.29 km) |
| Bad Neuenahr-Ahrweiler to Overijse | 114.18 mi (183.76 km) |
| Bad Neuenahr-Ahrweiler to Overpelt | 87.32 mi (140.53 km) |
| Bad Neuenahr-Ahrweiler to Paal | 91.38 mi (147.06 km) |
| Bad Neuenahr-Ahrweiler to Peer | 83.04 mi (133.63 km) |
| Bad Neuenahr-Ahrweiler to Pepinster | 56.94 mi (91.63 km) |
| Bad Neuenahr-Ahrweiler to Peruwelz | 155.04 mi (249.51 km) |
| Bad Neuenahr-Ahrweiler to Perwez | 100.97 mi (162.50 km) |
| Bad Neuenahr-Ahrweiler to Philippeville | 115.44 mi (185.77 km) |
