| Helston to Carmona | 873.06 mi (1,405.06 km) |
| Helston to Cartagena | 889.31 mi (1,431.21 km) |
| Helston to Cartama | 925.61 mi (1,489.63 km) |
| Helston to Cartaya | 890.44 mi (1,433.02 km) |
| Helston to Caspe | 662.34 mi (1,065.94 km) |
| Helston to Cassa de la Selva | 688.06 mi (1,107.32 km) |
| Helston to Castalla | 826.23 mi (1,329.69 km) |
| Helston to Castellbisbal | 689.95 mi (1,110.37 km) |
| Helston to Castelldefels | 701.87 mi (1,129.54 km) |
| Helston to Castello de Ampurias | 672.11 mi (1,081.66 km) |
| Helston to Castellon de la Plana | 743.83 mi (1,197.07 km) |
| Helston to Castilleja de la Cuesta | 879.49 mi (1,415.40 km) |
| Helston to Catarroja | 776.27 mi (1,249.29 km) |
| Helston to Catral | 853.81 mi (1,374.07 km) |
| Helston to Caudete | 814.88 mi (1,311.42 km) |
