| Harpenden to Campo de Criptana | 868.14 mi (1,397.14 km) |
| Harpenden to Campos del Puerto | 870.97 mi (1,401.70 km) |
| Harpenden to Canals | 888.36 mi (1,429.68 km) |
| Harpenden to Candelaria | 1,819.74 mi (2,928.60 km) |
| Harpenden to Canet de Mar | 719.97 mi (1,158.69 km) |
| Harpenden to Cangas | 769.05 mi (1,237.67 km) |
| Harpenden to Cangas de Narcea | 662.96 mi (1,066.93 km) |
| Harpenden to Canovellas | 715.58 mi (1,151.61 km) |
| Harpenden to Canteras | 982.07 mi (1,580.48 km) |
| Harpenden to Cantillana | 1,017.59 mi (1,637.65 km) |
| Harpenden to Capdepera | 856.59 mi (1,378.55 km) |
| Harpenden to Carballo | 709.10 mi (1,141.19 km) |
| Harpenden to Carcagente | 877.17 mi (1,411.67 km) |
| Harpenden to Cardedeu | 714.65 mi (1,150.12 km) |
| Harpenden to Carlet | 870.00 mi (1,400.13 km) |
