| Mering to Octeville | 580.02 mi (933.44 km) |
| Mering to Oignies | 390.28 mi (628.10 km) |
| Mering to Oissel | 456.01 mi (733.88 km) |
| Mering to Olivet | 420.11 mi (676.10 km) |
| Mering to Ollioules | 431.93 mi (695.13 km) |
| Mering to Olonne-sur-Mer | 607.68 mi (977.97 km) |
| Mering to Oloron-Sainte-Marie | 658.62 mi (1,059.94 km) |
| Mering to Onet Village | 482.11 mi (775.88 km) |
| Mering to Onnaing | 363.39 mi (584.81 km) |
| Mering to Orange | 410.11 mi (660.01 km) |
| Mering to Orchies | 380.08 mi (611.68 km) |
| Mering to Orleans | 419.40 mi (674.96 km) |
| Mering to Orly | 394.51 mi (634.91 km) |
| Mering to Ormesson-sur-Marne | 387.99 mi (624.40 km) |
| Mering to Orsay | 403.80 mi (649.85 km) |
