| Castelfranco Emilia to Octeville | 689.49 mi (1,109.62 km) |
| Castelfranco Emilia to Oignies | 552.52 mi (889.20 km) |
| Castelfranco Emilia to Oissel | 572.03 mi (920.60 km) |
| Castelfranco Emilia to Olivet | 491.81 mi (791.49 km) |
| Castelfranco Emilia to Ollioules | 278.11 mi (447.58 km) |
| Castelfranco Emilia to Olonne-sur-Mer | 633.93 mi (1,020.21 km) |
| Castelfranco Emilia to Oloron-Sainte-Marie | 588.02 mi (946.32 km) |
| Castelfranco Emilia to Onet Village | 417.13 mi (671.31 km) |
| Castelfranco Emilia to Onnaing | 529.77 mi (852.59 km) |
| Castelfranco Emilia to Orange | 309.91 mi (498.75 km) |
| Castelfranco Emilia to Orchies | 544.95 mi (877.02 km) |
| Castelfranco Emilia to Orleans | 492.54 mi (792.67 km) |
| Castelfranco Emilia to Orly | 500.19 mi (804.99 km) |
| Castelfranco Emilia to Ormesson-sur-Marne | 496.12 mi (798.43 km) |
| Castelfranco Emilia to Orsay | 506.56 mi (815.23 km) |
