| Nagykallo to Octeville | 1,072.47 mi (1,725.98 km) |
| Nagykallo to Oignies | 867.74 mi (1,396.49 km) |
| Nagykallo to Oissel | 950.57 mi (1,529.79 km) |
| Nagykallo to Olivet | 921.99 mi (1,483.79 km) |
| Nagykallo to Ollioules | 839.30 mi (1,350.72 km) |
| Nagykallo to Olonne-sur-Mer | 1,108.31 mi (1,783.65 km) |
| Nagykallo to Oloron-Sainte-Marie | 1,129.44 mi (1,817.65 km) |
| Nagykallo to Onet Village | 950.86 mi (1,530.26 km) |
| Nagykallo to Onnaing | 840.76 mi (1,353.07 km) |
| Nagykallo to Orange | 855.59 mi (1,376.95 km) |
| Nagykallo to Orchies | 856.79 mi (1,378.87 km) |
| Nagykallo to Orleans | 921.26 mi (1,482.62 km) |
| Nagykallo to Orly | 893.61 mi (1,438.12 km) |
| Nagykallo to Ormesson-sur-Marne | 886.82 mi (1,427.20 km) |
| Nagykallo to Orsay | 903.15 mi (1,453.48 km) |
