| Rheinbach to Octeville | 386.67 mi (622.29 km) |
| Rheinbach to Oignies | 174.04 mi (280.09 km) |
| Rheinbach to Oissel | 275.04 mi (442.64 km) |
| Rheinbach to Olivet | 297.34 mi (478.52 km) |
| Rheinbach to Ollioules | 520.38 mi (837.46 km) |
| Rheinbach to Olonne-sur-Mer | 488.45 mi (786.09 km) |
| Rheinbach to Oloron-Sainte-Marie | 624.90 mi (1,005.68 km) |
| Rheinbach to Onet Village | 478.22 mi (769.61 km) |
| Rheinbach to Onnaing | 148.24 mi (238.57 km) |
| Rheinbach to Orange | 459.74 mi (739.88 km) |
| Rheinbach to Orchies | 163.03 mi (262.37 km) |
| Rheinbach to Orleans | 295.27 mi (475.19 km) |
| Rheinbach to Orly | 241.88 mi (389.27 km) |
| Rheinbach to Ormesson-sur-Marne | 234.78 mi (377.84 km) |
| Rheinbach to Orsay | 251.40 mi (404.59 km) |
