| Tarcento to Octeville | 725.81 mi (1,168.09 km) |
| Tarcento to Oignies | 553.12 mi (890.15 km) |
| Tarcento to Oissel | 602.12 mi (969.03 km) |
| Tarcento to Olivet | 544.31 mi (875.99 km) |
| Tarcento to Ollioules | 419.64 mi (675.34 km) |
| Tarcento to Olonne-sur-Mer | 713.80 mi (1,148.74 km) |
| Tarcento to Oloron-Sainte-Marie | 709.14 mi (1,141.26 km) |
| Tarcento to Onet Village | 531.51 mi (855.39 km) |
| Tarcento to Onnaing | 527.09 mi (848.27 km) |
| Tarcento to Orange | 433.65 mi (697.90 km) |
| Tarcento to Orchies | 543.62 mi (874.86 km) |
| Tarcento to Orleans | 544.30 mi (875.97 km) |
| Tarcento to Orly | 534.18 mi (859.69 km) |
| Tarcento to Ormesson-sur-Marne | 528.56 mi (850.63 km) |
| Tarcento to Orsay | 542.44 mi (872.97 km) |
