| Helston to Cehegin | 847.08 mi (1,363.24 km) |
| Helston to Cervello | 694.31 mi (1,117.39 km) |
| Helston to Cervera | 661.65 mi (1,064.81 km) |
| Helston to Ceuti | 853.62 mi (1,373.76 km) |
| Helston to Cheste | 767.09 mi (1,234.51 km) |
| Helston to Chiclana de la Frontera | 946.44 mi (1,523.15 km) |
| Helston to Chipiona | 925.36 mi (1,489.23 km) |
| Helston to Chiva | 767.14 mi (1,234.59 km) |
| Helston to Churriana de la Vega | 898.36 mi (1,445.77 km) |
| Helston to Ciempozuelos | 691.50 mi (1,112.86 km) |
| Helston to Cieza | 841.13 mi (1,353.67 km) |
| Helston to Cisterniga | 586.81 mi (944.39 km) |
| Helston to Ciudad de Melilla | 1,030.43 mi (1,658.31 km) |
| Helston to Ciudad Real | 770.94 mi (1,240.71 km) |
| Helston to Ciudad-Rodrigo | 659.46 mi (1,061.30 km) |
