| Hunedoara to Oerlinghausen | 774.43 mi (1,246.33 km) |
| Hunedoara to Oestrich-Winkel | 748.92 mi (1,205.27 km) |
| Hunedoara to Offenburg | 727.54 mi (1,170.87 km) |
| Hunedoara to Oftersheim | 711.72 mi (1,145.40 km) |
| Hunedoara to Ohrdruf | 659.03 mi (1,060.61 km) |
| Hunedoara to Ohringen | 668.82 mi (1,076.36 km) |
| Hunedoara to Olbernhau | 555.39 mi (893.81 km) |
| Hunedoara to Olching | 571.48 mi (919.70 km) |
| Hunedoara to Oldenburg | 831.50 mi (1,338.17 km) |
| Hunedoara to Oldenburg in Holstein | 793.32 mi (1,276.72 km) |
| Hunedoara to Olfen | 816.10 mi (1,313.39 km) |
| Hunedoara to Olpe | 779.35 mi (1,254.24 km) |
| Hunedoara to Olsberg | 762.58 mi (1,227.26 km) |
| Hunedoara to Oranienburg | 649.68 mi (1,045.57 km) |
| Hunedoara to Ortenberg | 712.86 mi (1,147.23 km) |
