| Sluis to Cervello | 688.20 mi (1,107.55 km) |
| Sluis to Cervera | 673.72 mi (1,084.24 km) |
| Sluis to Ceuti | 941.77 mi (1,515.63 km) |
| Sluis to Cheste | 840.46 mi (1,352.59 km) |
| Sluis to Chiclana de la Frontera | 1,131.05 mi (1,820.25 km) |
| Sluis to Chipiona | 1,116.67 mi (1,797.11 km) |
| Sluis to Chiva | 841.42 mi (1,354.13 km) |
| Sluis to Churriana de la Vega | 1,037.23 mi (1,669.27 km) |
| Sluis to Ciempozuelos | 840.20 mi (1,352.18 km) |
| Sluis to Cieza | 932.72 mi (1,501.06 km) |
| Sluis to Cisterniga | 770.87 mi (1,240.60 km) |
| Sluis to Ciudad de Melilla | 1,151.10 mi (1,852.51 km) |
| Sluis to Ciudad Real | 921.83 mi (1,483.54 km) |
| Sluis to Ciudad-Rodrigo | 878.62 mi (1,414.00 km) |
| Sluis to Cocentaina | 887.61 mi (1,428.46 km) |
