| Houghton Regis to Cortona | 831.68 mi (1,338.46 km) |
| Houghton Regis to Cosenza | 1,184.29 mi (1,905.93 km) |
| Houghton Regis to Cossato | 589.60 mi (948.88 km) |
| Houghton Regis to Costa Volpino | 638.58 mi (1,027.69 km) |
| Houghton Regis to Creazzo | 700.89 mi (1,127.97 km) |
| Houghton Regis to Crema | 647.91 mi (1,042.71 km) |
| Houghton Regis to Cremona | 671.29 mi (1,080.34 km) |
| Houghton Regis to Crevalcore | 729.43 mi (1,173.90 km) |
| Houghton Regis to Crispiano | 1,147.53 mi (1,846.77 km) |
| Houghton Regis to Crosia | 1,186.62 mi (1,909.68 km) |
| Houghton Regis to Crotone | 1,224.44 mi (1,970.55 km) |
| Houghton Regis to Cuneo | 638.38 mi (1,027.37 km) |
| Houghton Regis to Cuorgne | 583.92 mi (939.73 km) |
| Houghton Regis to Cusano Milanino | 622.30 mi (1,001.50 km) |
| Houghton Regis to Cutro | 1,222.79 mi (1,967.89 km) |
