| Calenzano to Octeville | 723.90 mi (1,165.00 km) |
| Calenzano to Oignies | 595.51 mi (958.38 km) |
| Calenzano to Oissel | 608.92 mi (979.96 km) |
| Calenzano to Olivet | 523.90 mi (843.13 km) |
| Calenzano to Ollioules | 271.25 mi (436.54 km) |
| Calenzano to Olonne-sur-Mer | 655.53 mi (1,054.97 km) |
| Calenzano to Oloron-Sainte-Marie | 591.09 mi (951.27 km) |
| Calenzano to Onet Village | 426.46 mi (686.32 km) |
| Calenzano to Onnaing | 573.49 mi (922.94 km) |
| Calenzano to Orange | 316.42 mi (509.22 km) |
| Calenzano to Orchies | 588.32 mi (946.81 km) |
| Calenzano to Orleans | 524.83 mi (844.63 km) |
| Calenzano to Orly | 536.94 mi (864.12 km) |
| Calenzano to Ormesson-sur-Marne | 533.28 mi (858.23 km) |
| Calenzano to Orsay | 542.78 mi (873.52 km) |
