| Belm to Octeville | 463.31 mi (745.62 km) |
| Belm to Oignies | 255.10 mi (410.54 km) |
| Belm to Oissel | 368.87 mi (593.64 km) |
| Belm to Olivet | 412.38 mi (663.67 km) |
| Belm to Ollioules | 641.71 mi (1,032.73 km) |
| Belm to Olonne-sur-Mer | 596.42 mi (959.85 km) |
| Belm to Oloron-Sainte-Marie | 747.61 mi (1,203.16 km) |
| Belm to Onet Village | 603.96 mi (971.97 km) |
| Belm to Onnaing | 236.08 mi (379.94 km) |
| Belm to Orange | 584.14 mi (940.09 km) |
| Belm to Orchies | 245.58 mi (395.21 km) |
| Belm to Orleans | 410.09 mi (659.97 km) |
| Belm to Orly | 351.88 mi (566.29 km) |
| Belm to Ormesson-sur-Marne | 345.22 mi (555.58 km) |
| Belm to Orsay | 360.64 mi (580.40 km) |
