| Gravelines to Cosenza | 1,057.27 mi (1,701.51 km) |
| Gravelines to Cossato | 465.87 mi (749.74 km) |
| Gravelines to Costa Volpino | 509.93 mi (820.65 km) |
| Gravelines to Creazzo | 571.20 mi (919.26 km) |
| Gravelines to Crema | 520.96 mi (838.40 km) |
| Gravelines to Cremona | 544.21 mi (875.83 km) |
| Gravelines to Crevalcore | 601.37 mi (967.81 km) |
| Gravelines to Crispiano | 1,018.30 mi (1,638.80 km) |
| Gravelines to Crosia | 1,058.75 mi (1,703.89 km) |
| Gravelines to Crotone | 1,096.70 mi (1,764.97 km) |
| Gravelines to Cuneo | 520.97 mi (838.42 km) |
| Gravelines to Cuorgne | 462.57 mi (744.43 km) |
| Gravelines to Cusano Milanino | 495.93 mi (798.12 km) |
| Gravelines to Cutro | 1,095.24 mi (1,762.62 km) |
| Gravelines to Cutrofiano | 1,076.69 mi (1,732.77 km) |
