| Fier to Oestrich-Winkel | 849.77 mi (1,367.58 km) |
| Fier to Offenburg | 781.46 mi (1,257.63 km) |
| Fier to Oftersheim | 800.69 mi (1,288.59 km) |
| Fier to Ohrdruf | 816.07 mi (1,313.34 km) |
| Fier to Ohringen | 763.26 mi (1,228.35 km) |
| Fier to Olbernhau | 749.05 mi (1,205.47 km) |
| Fier to Olching | 656.37 mi (1,056.32 km) |
| Fier to Oldenburg | 1,008.56 mi (1,623.12 km) |
| Fier to Oldenburg in Holstein | 1,019.75 mi (1,641.14 km) |
| Fier to Olfen | 954.12 mi (1,535.51 km) |
| Fier to Olpe | 905.32 mi (1,456.97 km) |
| Fier to Olsberg | 903.97 mi (1,454.80 km) |
| Fier to Oranienburg | 882.54 mi (1,420.31 km) |
| Fier to Ortenberg | 835.59 mi (1,344.75 km) |
| Fier to Oschatz | 792.77 mi (1,275.84 km) |
