| Hemel Hempstead to Cortona | 823.07 mi (1,324.61 km) |
| Hemel Hempstead to Cosenza | 1,175.69 mi (1,892.09 km) |
| Hemel Hempstead to Cossato | 580.61 mi (934.40 km) |
| Hemel Hempstead to Costa Volpino | 630.44 mi (1,014.60 km) |
| Hemel Hempstead to Creazzo | 693.09 mi (1,115.42 km) |
| Hemel Hempstead to Crema | 639.39 mi (1,028.99 km) |
| Hemel Hempstead to Cremona | 662.78 mi (1,066.65 km) |
| Hemel Hempstead to Crevalcore | 721.12 mi (1,160.53 km) |
| Hemel Hempstead to Crispiano | 1,139.50 mi (1,833.84 km) |
| Hemel Hempstead to Crosia | 1,178.20 mi (1,896.13 km) |
| Hemel Hempstead to Crotone | 1,215.99 mi (1,956.95 km) |
| Hemel Hempstead to Cuneo | 628.75 mi (1,011.88 km) |
| Hemel Hempstead to Cuorgne | 574.67 mi (924.83 km) |
| Hemel Hempstead to Cusano Milanino | 613.68 mi (987.62 km) |
| Hemel Hempstead to Cutro | 1,214.30 mi (1,954.22 km) |
