| Castel San Giorgio to Cartagena | 866.76 mi (1,394.91 km) |
| Castel San Giorgio to Cartama | 1,076.49 mi (1,732.44 km) |
| Castel San Giorgio to Cartaya | 1,194.06 mi (1,921.65 km) |
| Castel San Giorgio to Caspe | 767.89 mi (1,235.79 km) |
| Castel San Giorgio to Cassa de la Selva | 617.74 mi (994.16 km) |
| Castel San Giorgio to Castalla | 829.95 mi (1,335.67 km) |
| Castel San Giorgio to Castellbisbal | 663.00 mi (1,066.99 km) |
| Castel San Giorgio to Castelldefels | 663.44 mi (1,067.70 km) |
| Castel San Giorgio to Castello de Ampurias | 609.46 mi (980.83 km) |
| Castel San Giorgio to Castellon de la Plana | 776.46 mi (1,249.59 km) |
| Castel San Giorgio to Castilleja de la Cuesta | 1,134.54 mi (1,825.86 km) |
| Castel San Giorgio to Catarroja | 803.03 mi (1,292.34 km) |
| Castel San Giorgio to Catral | 845.40 mi (1,360.54 km) |
| Castel San Giorgio to Caudete | 844.55 mi (1,359.17 km) |
| Castel San Giorgio to Cehegin | 898.38 mi (1,445.80 km) |
