| Cernavoda to Oerlinghausen | 1,031.98 mi (1,660.81 km) |
| Cernavoda to Oestrich-Winkel | 1,015.12 mi (1,633.67 km) |
| Cernavoda to Offenburg | 995.94 mi (1,602.81 km) |
| Cernavoda to Oftersheim | 979.11 mi (1,575.73 km) |
| Cernavoda to Ohrdruf | 919.41 mi (1,479.64 km) |
| Cernavoda to Ohringen | 936.24 mi (1,506.74 km) |
| Cernavoda to Olbernhau | 811.43 mi (1,305.87 km) |
| Cernavoda to Olching | 839.82 mi (1,351.56 km) |
| Cernavoda to Oldenburg | 1,083.17 mi (1,743.19 km) |
| Cernavoda to Oldenburg in Holstein | 1,029.67 mi (1,657.09 km) |
| Cernavoda to Olfen | 1,076.58 mi (1,732.59 km) |
| Cernavoda to Olpe | 1,042.31 mi (1,677.43 km) |
| Cernavoda to Olsberg | 1,023.45 mi (1,647.08 km) |
| Cernavoda to Oranienburg | 889.27 mi (1,431.15 km) |
| Cernavoda to Ortenberg | 977.26 mi (1,572.75 km) |
