| Castenedolo to Octeville | 625.53 mi (1,006.69 km) |
| Castenedolo to Oignies | 482.70 mi (776.83 km) |
| Castenedolo to Oissel | 506.27 mi (814.77 km) |
| Castenedolo to Olivet | 430.79 mi (693.29 km) |
| Castenedolo to Ollioules | 272.60 mi (438.71 km) |
| Castenedolo to Olonne-sur-Mer | 583.33 mi (938.78 km) |
| Castenedolo to Oloron-Sainte-Marie | 560.84 mi (902.58 km) |
| Castenedolo to Onet Village | 384.37 mi (618.59 km) |
| Castenedolo to Onnaing | 459.64 mi (739.73 km) |
| Castenedolo to Orange | 284.23 mi (457.42 km) |
| Castenedolo to Orchies | 474.96 mi (764.37 km) |
| Castenedolo to Orleans | 431.32 mi (694.14 km) |
| Castenedolo to Orly | 434.77 mi (699.70 km) |
| Castenedolo to Ormesson-sur-Marne | 430.36 mi (692.60 km) |
| Castenedolo to Orsay | 441.57 mi (710.64 km) |
