| Ober-Ramstadt to Oria | 775.41 mi (1,247.90 km) |
| Ober-Ramstadt to Oristano | 685.97 mi (1,103.96 km) |
| Ober-Ramstadt to Orta Nova | 676.39 mi (1,088.55 km) |
| Ober-Ramstadt to Orte | 538.17 mi (866.10 km) |
| Ober-Ramstadt to Ortona | 583.23 mi (938.62 km) |
| Ober-Ramstadt to Orvieto | 516.99 mi (832.01 km) |
| Ober-Ramstadt to Orzinuovi | 311.22 mi (500.86 km) |
| Ober-Ramstadt to Osimo | 492.58 mi (792.74 km) |
| Ober-Ramstadt to Ospitaletto | 301.91 mi (485.87 km) |
| Ober-Ramstadt to Ostuni | 760.24 mi (1,223.49 km) |
| Ober-Ramstadt to Ottaviano | 679.66 mi (1,093.81 km) |
| Ober-Ramstadt to Ovada | 358.91 mi (577.61 km) |
| Ober-Ramstadt to Ozieri | 639.12 mi (1,028.56 km) |
| Ober-Ramstadt to Paceco | 840.03 mi (1,351.90 km) |
| Ober-Ramstadt to Pachino | 960.04 mi (1,545.04 km) |
