| Cento to Octeville | 693.53 mi (1,116.14 km) |
| Cento to Oignies | 552.72 mi (889.52 km) |
| Cento to Oissel | 575.18 mi (925.67 km) |
| Cento to Olivet | 496.94 mi (799.75 km) |
| Cento to Ollioules | 291.97 mi (469.88 km) |
| Cento to Olonne-sur-Mer | 642.16 mi (1,033.45 km) |
| Cento to Oloron-Sainte-Marie | 600.23 mi (965.97 km) |
| Cento to Onet Village | 428.42 mi (689.48 km) |
| Cento to Onnaing | 529.57 mi (852.27 km) |
| Cento to Orange | 321.92 mi (518.08 km) |
| Cento to Orchies | 544.94 mi (876.99 km) |
| Cento to Orleans | 497.60 mi (800.81 km) |
| Cento to Orly | 503.49 mi (810.29 km) |
| Cento to Ormesson-sur-Marne | 499.25 mi (803.46 km) |
| Cento to Orsay | 510.07 mi (820.88 km) |
