| Castel Gandolfo to Cervello | 552.90 mi (889.81 km) |
| Castel Gandolfo to Cervera | 586.66 mi (944.13 km) |
| Castel Gandolfo to Ceuti | 779.15 mi (1,253.92 km) |
| Castel Gandolfo to Cheste | 716.02 mi (1,152.32 km) |
| Castel Gandolfo to Chiclana de la Frontera | 1,070.84 mi (1,723.35 km) |
| Castel Gandolfo to Chipiona | 1,075.72 mi (1,731.21 km) |
| Castel Gandolfo to Chiva | 717.99 mi (1,155.49 km) |
| Castel Gandolfo to Churriana de la Vega | 924.16 mi (1,487.29 km) |
| Castel Gandolfo to Ciempozuelos | 854.77 mi (1,375.62 km) |
| Castel Gandolfo to Cieza | 782.18 mi (1,258.80 km) |
| Castel Gandolfo to Cisterniga | 893.07 mi (1,437.25 km) |
| Castel Gandolfo to Ciudad de Melilla | 952.26 mi (1,532.52 km) |
| Castel Gandolfo to Ciudad Real | 891.39 mi (1,434.55 km) |
| Castel Gandolfo to Ciudad-Rodrigo | 999.19 mi (1,608.04 km) |
| Castel Gandolfo to Cocentaina | 720.10 mi (1,158.89 km) |
