| Harnes to Cosenza | 1,006.77 mi (1,620.23 km) |
| Harnes to Cossato | 415.41 mi (668.53 km) |
| Harnes to Costa Volpino | 459.67 mi (739.77 km) |
| Harnes to Creazzo | 521.42 mi (839.14 km) |
| Harnes to Crema | 470.41 mi (757.06 km) |
| Harnes to Cremona | 493.68 mi (794.50 km) |
| Harnes to Crevalcore | 550.98 mi (886.72 km) |
| Harnes to Crispiano | 968.30 mi (1,558.33 km) |
| Harnes to Crosia | 1,008.36 mi (1,622.79 km) |
| Harnes to Crotone | 1,046.29 mi (1,683.84 km) |
| Harnes to Cuneo | 471.54 mi (758.87 km) |
| Harnes to Cuorgne | 412.43 mi (663.74 km) |
| Harnes to Cusano Milanino | 445.35 mi (716.72 km) |
| Harnes to Cutro | 1,044.80 mi (1,681.44 km) |
| Harnes to Cutrofiano | 1,026.82 mi (1,652.51 km) |
