| Nitra to Octeville | 896.94 mi (1,443.49 km) |
| Nitra to Oignies | 693.74 mi (1,116.47 km) |
| Nitra to Oissel | 774.73 mi (1,246.81 km) |
| Nitra to Olivet | 746.31 mi (1,201.07 km) |
| Nitra to Ollioules | 688.74 mi (1,108.42 km) |
| Nitra to Olonne-sur-Mer | 933.74 mi (1,502.71 km) |
| Nitra to Oloron-Sainte-Marie | 964.92 mi (1,552.88 km) |
| Nitra to Onet Village | 785.94 mi (1,264.85 km) |
| Nitra to Onnaing | 666.66 mi (1,072.88 km) |
| Nitra to Orange | 695.74 mi (1,119.69 km) |
| Nitra to Orchies | 682.84 mi (1,098.93 km) |
| Nitra to Orleans | 745.54 mi (1,199.83 km) |
| Nitra to Orly | 717.50 mi (1,154.70 km) |
| Nitra to Ormesson-sur-Marne | 710.71 mi (1,143.78 km) |
| Nitra to Orsay | 727.04 mi (1,170.06 km) |
