| Hertford to Cortona | 812.44 mi (1,307.50 km) |
| Hertford to Cosenza | 1,165.03 mi (1,874.93 km) |
| Hertford to Cossato | 570.88 mi (918.74 km) |
| Hertford to Costa Volpino | 618.90 mi (996.02 km) |
| Hertford to Creazzo | 680.96 mi (1,095.90 km) |
| Hertford to Crema | 628.60 mi (1,011.63 km) |
| Hertford to Cremona | 651.96 mi (1,049.22 km) |
| Hertford to Crevalcore | 709.89 mi (1,142.47 km) |
| Hertford to Crispiano | 1,127.74 mi (1,814.93 km) |
| Hertford to Crosia | 1,167.17 mi (1,878.37 km) |
| Hertford to Crotone | 1,205.02 mi (1,939.29 km) |
| Hertford to Cuneo | 620.77 mi (999.03 km) |
| Hertford to Cuorgne | 565.61 mi (910.26 km) |
| Hertford to Cusano Milanino | 603.10 mi (970.59 km) |
| Hertford to Cutro | 1,203.41 mi (1,936.70 km) |
