| Dulmen to Octeville | 418.50 mi (673.51 km) |
| Dulmen to Oignies | 208.13 mi (334.95 km) |
| Dulmen to Oissel | 321.14 mi (516.82 km) |
| Dulmen to Olivet | 363.85 mi (585.55 km) |
| Dulmen to Ollioules | 604.19 mi (972.35 km) |
| Dulmen to Olonne-sur-Mer | 547.84 mi (881.66 km) |
| Dulmen to Oloron-Sainte-Marie | 700.14 mi (1,126.77 km) |
| Dulmen to Onet Village | 558.97 mi (899.58 km) |
| Dulmen to Onnaing | 188.19 mi (302.86 km) |
| Dulmen to Orange | 543.54 mi (874.74 km) |
| Dulmen to Orchies | 198.32 mi (319.16 km) |
| Dulmen to Orleans | 361.53 mi (581.83 km) |
| Dulmen to Orly | 303.20 mi (487.95 km) |
| Dulmen to Ormesson-sur-Marne | 296.55 mi (477.25 km) |
| Dulmen to Orsay | 311.96 mi (502.05 km) |
