| Harpenden to Capodrise | 1,016.22 mi (1,635.46 km) |
| Harpenden to Capoterra | 981.51 mi (1,579.59 km) |
| Harpenden to Capriolo | 633.04 mi (1,018.78 km) |
| Harpenden to Capua | 1,010.44 mi (1,626.14 km) |
| Harpenden to Capurso | 1,103.82 mi (1,776.42 km) |
| Harpenden to Carate Brianza | 601.73 mi (968.38 km) |
| Harpenden to Caravaggio | 630.44 mi (1,014.59 km) |
| Harpenden to Carbonera | 713.21 mi (1,147.81 km) |
| Harpenden to Carbonia | 972.34 mi (1,564.83 km) |
| Harpenden to Cardito | 1,021.68 mi (1,644.23 km) |
| Harpenden to Carignano | 602.34 mi (969.37 km) |
| Harpenden to Carini | 1,149.91 mi (1,850.60 km) |
| Harpenden to Carlentini | 1,251.95 mi (2,014.82 km) |
| Harpenden to Carmagnola | 606.78 mi (976.52 km) |
| Harpenden to Carmiano | 1,179.50 mi (1,898.22 km) |
