| Hemel Hempstead to Castelfidardo | 865.80 mi (1,393.37 km) |
| Hemel Hempstead to Castelfiorentino | 773.06 mi (1,244.12 km) |
| Hemel Hempstead to Castelfranco di Sopra | 790.79 mi (1,272.65 km) |
| Hemel Hempstead to Castelfranco di Sotto | 760.86 mi (1,224.48 km) |
| Hemel Hempstead to Castelfranco Emilia | 723.90 mi (1,165.00 km) |
| Hemel Hempstead to Castelfranco Veneto | 703.13 mi (1,131.58 km) |
| Hemel Hempstead to Castellabate | 1,080.09 mi (1,738.23 km) |
| Hemel Hempstead to Castellammare del Golfo | 1,147.76 mi (1,847.15 km) |
| Hemel Hempstead to Castellammare di Stabia | 1,042.17 mi (1,677.21 km) |
| Hemel Hempstead to Castellamonte | 576.92 mi (928.46 km) |
| Hemel Hempstead to Castellana Grotte | 1,122.58 mi (1,806.63 km) |
| Hemel Hempstead to Castellaneta | 1,127.37 mi (1,814.33 km) |
| Hemel Hempstead to Castellanza | 601.09 mi (967.36 km) |
| Hemel Hempstead to Castellarano | 716.47 mi (1,153.04 km) |
| Hemel Hempstead to Castelleone | 645.54 mi (1,038.90 km) |
