| Ostrow Wielkopolski to Cortona | 638.93 mi (1,028.26 km) |
| Ostrow Wielkopolski to Cosenza | 856.58 mi (1,378.53 km) |
| Ostrow Wielkopolski to Cossato | 608.14 mi (978.70 km) |
| Ostrow Wielkopolski to Costa Volpino | 533.53 mi (858.64 km) |
| Ostrow Wielkopolski to Creazzo | 511.77 mi (823.61 km) |
| Ostrow Wielkopolski to Crema | 571.17 mi (919.21 km) |
| Ostrow Wielkopolski to Cremona | 573.97 mi (923.72 km) |
| Ostrow Wielkopolski to Crevalcore | 568.47 mi (914.86 km) |
| Ostrow Wielkopolski to Crispiano | 763.94 mi (1,229.45 km) |
| Ostrow Wielkopolski to Crosia | 836.35 mi (1,345.98 km) |
| Ostrow Wielkopolski to Crotone | 868.89 mi (1,398.34 km) |
| Ostrow Wielkopolski to Cuneo | 689.51 mi (1,109.67 km) |
| Ostrow Wielkopolski to Cuorgne | 634.17 mi (1,020.61 km) |
| Ostrow Wielkopolski to Cusano Milanino | 576.48 mi (927.75 km) |
| Ostrow Wielkopolski to Cutro | 872.65 mi (1,404.39 km) |
