| Grevesmuhlen to Octeville | 620.10 mi (997.96 km) |
| Grevesmuhlen to Oignies | 418.01 mi (672.73 km) |
| Grevesmuhlen to Oissel | 532.75 mi (857.37 km) |
| Grevesmuhlen to Olivet | 578.15 mi (930.44 km) |
| Grevesmuhlen to Ollioules | 779.62 mi (1,254.67 km) |
| Grevesmuhlen to Olonne-sur-Mer | 762.12 mi (1,226.51 km) |
| Grevesmuhlen to Oloron-Sainte-Marie | 910.66 mi (1,465.57 km) |
| Grevesmuhlen to Onet Village | 761.17 mi (1,224.98 km) |
| Grevesmuhlen to Onnaing | 400.70 mi (644.86 km) |
| Grevesmuhlen to Orange | 730.61 mi (1,175.81 km) |
| Grevesmuhlen to Orchies | 409.06 mi (658.31 km) |
| Grevesmuhlen to Orleans | 575.88 mi (926.78 km) |
| Grevesmuhlen to Orly | 517.88 mi (833.45 km) |
| Grevesmuhlen to Ormesson-sur-Marne | 511.22 mi (822.73 km) |
| Grevesmuhlen to Orsay | 526.64 mi (847.54 km) |
