| Mieres to Orbetello | 860.99 mi (1,385.63 km) |
| Mieres to Oria | 1,215.16 mi (1,955.62 km) |
| Mieres to Oristano | 776.60 mi (1,249.82 km) |
| Mieres to Orta Nova | 1,103.17 mi (1,775.38 km) |
| Mieres to Orte | 919.76 mi (1,480.21 km) |
| Mieres to Ortona | 1,022.27 mi (1,645.19 km) |
| Mieres to Orvieto | 903.11 mi (1,453.42 km) |
| Mieres to Orzinuovi | 789.24 mi (1,270.17 km) |
| Mieres to Osimo | 965.38 mi (1,553.63 km) |
| Mieres to Ospitaletto | 797.03 mi (1,282.70 km) |
| Mieres to Ostuni | 1,208.11 mi (1,944.26 km) |
| Mieres to Ottaviano | 1,049.64 mi (1,689.23 km) |
| Mieres to Ovada | 722.93 mi (1,163.44 km) |
| Mieres to Ozieri | 780.74 mi (1,256.48 km) |
| Mieres to Paceco | 1,025.13 mi (1,649.79 km) |
