| Birkenau to Octeville | 463.16 mi (745.38 km) |
| Birkenau to Oignies | 261.21 mi (420.37 km) |
| Birkenau to Oissel | 342.22 mi (550.75 km) |
| Birkenau to Olivet | 331.53 mi (533.54 km) |
| Birkenau to Ollioules | 464.06 mi (746.83 km) |
| Birkenau to Olonne-sur-Mer | 526.61 mi (847.50 km) |
| Birkenau to Oloron-Sainte-Marie | 624.07 mi (1,004.34 km) |
| Birkenau to Onet Village | 460.03 mi (740.34 km) |
| Birkenau to Onnaing | 234.01 mi (376.60 km) |
| Birkenau to Orange | 417.31 mi (671.59 km) |
| Birkenau to Orchies | 250.51 mi (403.16 km) |
| Birkenau to Orleans | 330.13 mi (531.29 km) |
| Birkenau to Orly | 290.74 mi (467.90 km) |
| Birkenau to Ormesson-sur-Marne | 283.62 mi (456.44 km) |
| Birkenau to Orsay | 300.58 mi (483.73 km) |
