| Castelfranco Emilia to Oerlinghausen | 520.83 mi (838.19 km) |
| Castelfranco Emilia to Oestrich-Winkel | 399.71 mi (643.27 km) |
| Castelfranco Emilia to Offenburg | 305.69 mi (491.96 km) |
| Castelfranco Emilia to Oftersheim | 349.71 mi (562.80 km) |
| Castelfranco Emilia to Ohrdruf | 430.80 mi (693.31 km) |
| Castelfranco Emilia to Ohringen | 326.38 mi (525.25 km) |
| Castelfranco Emilia to Olbernhau | 432.57 mi (696.16 km) |
| Castelfranco Emilia to Olching | 249.28 mi (401.18 km) |
| Castelfranco Emilia to Oldenburg | 604.36 mi (972.62 km) |
| Castelfranco Emilia to Oldenburg in Holstein | 670.48 mi (1,079.03 km) |
| Castelfranco Emilia to Olfen | 520.03 mi (836.91 km) |
| Castelfranco Emilia to Olpe | 467.94 mi (753.08 km) |
| Castelfranco Emilia to Olsberg | 481.43 mi (774.78 km) |
| Castelfranco Emilia to Oranienburg | 572.31 mi (921.05 km) |
| Castelfranco Emilia to Ortenberg | 408.66 mi (657.68 km) |
