| Castelfranco Emilia to Oria | 438.28 mi (705.35 km) |
| Castelfranco Emilia to Oristano | 347.65 mi (559.49 km) |
| Castelfranco Emilia to Orta Nova | 326.09 mi (524.78 km) |
| Castelfranco Emilia to Orte | 162.01 mi (260.73 km) |
| Castelfranco Emilia to Ortona | 228.58 mi (367.86 km) |
| Castelfranco Emilia to Orvieto | 140.13 mi (225.52 km) |
| Castelfranco Emilia to Orzinuovi | 77.92 mi (125.40 km) |
| Castelfranco Emilia to Osimo | 143.14 mi (230.36 km) |
| Castelfranco Emilia to Ospitaletto | 81.67 mi (131.44 km) |
| Castelfranco Emilia to Ostuni | 425.60 mi (684.94 km) |
| Castelfranco Emilia to Ottaviano | 311.75 mi (501.72 km) |
| Castelfranco Emilia to Ovada | 118.38 mi (190.52 km) |
| Castelfranco Emilia to Ozieri | 296.12 mi (476.56 km) |
| Castelfranco Emilia to Paceco | 463.48 mi (745.90 km) |
| Castelfranco Emilia to Pachino | 584.12 mi (940.05 km) |
