| Sluis to Cartagena | 970.89 mi (1,562.50 km) |
| Sluis to Cartama | 1,082.81 mi (1,742.61 km) |
| Sluis to Cartaya | 1,097.68 mi (1,766.54 km) |
| Sluis to Caspe | 714.81 mi (1,150.37 km) |
| Sluis to Cassa de la Selva | 651.24 mi (1,048.07 km) |
| Sluis to Castalla | 900.05 mi (1,448.48 km) |
| Sluis to Castellbisbal | 682.55 mi (1,098.46 km) |
| Sluis to Castelldefels | 696.11 mi (1,120.28 km) |
| Sluis to Castello de Ampurias | 625.47 mi (1,006.60 km) |
| Sluis to Castellon de la Plana | 799.50 mi (1,286.67 km) |
| Sluis to Castilleja de la Cuesta | 1,067.09 mi (1,717.31 km) |
| Sluis to Catarroja | 842.63 mi (1,356.08 km) |
| Sluis to Catral | 931.10 mi (1,498.46 km) |
| Sluis to Caudete | 896.26 mi (1,442.39 km) |
| Sluis to Cehegin | 947.35 mi (1,524.62 km) |
