| Bertem to Oignies | 75.80 mi (121.99 km) |
| Bertem to Oissel | 187.78 mi (302.20 km) |
| Bertem to Olivet | 239.77 mi (385.87 km) |
| Bertem to Ollioules | 535.87 mi (862.41 km) |
| Bertem to Olonne-sur-Mer | 416.55 mi (670.38 km) |
| Bertem to Oloron-Sainte-Marie | 583.02 mi (938.28 km) |
| Bertem to Onet Village | 457.78 mi (736.73 km) |
| Bertem to Onnaing | 54.90 mi (88.35 km) |
| Bertem to Orange | 463.82 mi (746.45 km) |
| Bertem to Orchies | 65.47 mi (105.36 km) |
| Bertem to Orleans | 237.26 mi (381.84 km) |
| Bertem to Orly | 176.09 mi (283.38 km) |
| Bertem to Ormesson-sur-Marne | 170.06 mi (273.69 km) |
| Bertem to Orsay | 183.98 mi (296.08 km) |
| Bertem to Orthez | 567.76 mi (913.72 km) |
