| Campulung Moldovenesc to Oerlinghausen | 811.35 mi (1,305.73 km) |
| Campulung Moldovenesc to Oestrich-Winkel | 815.31 mi (1,312.11 km) |
| Campulung Moldovenesc to Offenburg | 815.29 mi (1,312.09 km) |
| Campulung Moldovenesc to Oftersheim | 786.12 mi (1,265.14 km) |
| Campulung Moldovenesc to Ohrdruf | 705.55 mi (1,135.48 km) |
| Campulung Moldovenesc to Ohringen | 744.34 mi (1,197.90 km) |
| Campulung Moldovenesc to Olbernhau | 592.81 mi (954.03 km) |
| Campulung Moldovenesc to Olching | 660.49 mi (1,062.95 km) |
| Campulung Moldovenesc to Oldenburg | 854.31 mi (1,374.88 km) |
| Campulung Moldovenesc to Oldenburg in Holstein | 789.33 mi (1,270.30 km) |
| Campulung Moldovenesc to Olfen | 860.34 mi (1,384.58 km) |
| Campulung Moldovenesc to Olpe | 831.90 mi (1,338.81 km) |
| Campulung Moldovenesc to Olsberg | 808.72 mi (1,301.51 km) |
| Campulung Moldovenesc to Oranienburg | 652.56 mi (1,050.20 km) |
| Campulung Moldovenesc to Ortenberg | 771.84 mi (1,242.16 km) |
