| Marl to Octeville | 408.53 mi (657.47 km) |
| Marl to Oignies | 197.18 mi (317.32 km) |
| Marl to Oissel | 309.55 mi (498.17 km) |
| Marl to Olivet | 350.86 mi (564.65 km) |
| Marl to Ollioules | 592.14 mi (952.96 km) |
| Marl to Olonne-sur-Mer | 535.40 mi (861.64 km) |
| Marl to Oloron-Sainte-Marie | 686.89 mi (1,105.44 km) |
| Marl to Onet Village | 545.79 mi (878.36 km) |
| Marl to Onnaing | 176.57 mi (284.17 km) |
| Marl to Orange | 530.95 mi (854.48 km) |
| Marl to Orchies | 187.18 mi (301.24 km) |
| Marl to Orleans | 348.56 mi (560.95 km) |
| Marl to Orly | 290.44 mi (467.42 km) |
| Marl to Ormesson-sur-Marne | 283.76 mi (456.67 km) |
| Marl to Orsay | 299.26 mi (481.62 km) |
