| Ober-Ramstadt to Opwijk | 215.79 mi (347.28 km) |
| Ober-Ramstadt to Ostend | 273.47 mi (440.11 km) |
| Ober-Ramstadt to Oud-Heverlee | 192.86 mi (310.37 km) |
| Ober-Ramstadt to Oud-Turnhout | 194.44 mi (312.92 km) |
| Ober-Ramstadt to Oudenaarde | 237.65 mi (382.46 km) |
| Ober-Ramstadt to Oudenburg | 269.24 mi (433.30 km) |
| Ober-Ramstadt to Oupeye | 149.92 mi (241.27 km) |
| Ober-Ramstadt to Overijse | 197.27 mi (317.48 km) |
| Ober-Ramstadt to Overpelt | 174.83 mi (281.36 km) |
| Ober-Ramstadt to Paal | 178.09 mi (286.60 km) |
| Ober-Ramstadt to Peer | 170.46 mi (274.33 km) |
| Ober-Ramstadt to Pepinster | 139.26 mi (224.13 km) |
| Ober-Ramstadt to Peruwelz | 233.40 mi (375.62 km) |
| Ober-Ramstadt to Perwez | 182.28 mi (293.36 km) |
| Ober-Ramstadt to Philippeville | 188.15 mi (302.81 km) |
