| Turnu Magurele to Octeville | 1,312.57 mi (2,112.37 km) |
| Turnu Magurele to Oignies | 1,123.12 mi (1,807.49 km) |
| Turnu Magurele to Oissel | 1,188.26 mi (1,912.32 km) |
| Turnu Magurele to Olivet | 1,137.53 mi (1,830.68 km) |
| Turnu Magurele to Ollioules | 953.15 mi (1,533.94 km) |
| Turnu Magurele to Olonne-sur-Mer | 1,306.23 mi (2,102.17 km) |
| Turnu Magurele to Oloron-Sainte-Marie | 1,273.00 mi (2,048.70 km) |
| Turnu Magurele to Onet Village | 1,103.52 mi (1,775.94 km) |
| Turnu Magurele to Onnaing | 1,096.00 mi (1,763.85 km) |
| Turnu Magurele to Orange | 995.87 mi (1,602.70 km) |
| Turnu Magurele to Orchies | 1,112.64 mi (1,790.62 km) |
| Turnu Magurele to Orleans | 1,137.42 mi (1,830.51 km) |
| Turnu Magurele to Orly | 1,123.22 mi (1,807.64 km) |
| Turnu Magurele to Ormesson-sur-Marne | 1,117.16 mi (1,797.90 km) |
| Turnu Magurele to Orsay | 1,131.95 mi (1,821.70 km) |
