| Koper to Cervello | 655.57 mi (1,055.03 km) |
| Koper to Cervera | 677.84 mi (1,090.87 km) |
| Koper to Ceuti | 926.91 mi (1,491.72 km) |
| Koper to Cheste | 843.80 mi (1,357.96 km) |
| Koper to Chiclana de la Frontera | 1,208.99 mi (1,945.68 km) |
| Koper to Chipiona | 1,208.34 mi (1,944.64 km) |
| Koper to Chiva | 845.67 mi (1,360.98 km) |
| Koper to Churriana de la Vega | 1,068.74 mi (1,719.97 km) |
| Koper to Ciempozuelos | 952.04 mi (1,532.16 km) |
| Koper to Cieza | 926.31 mi (1,490.76 km) |
| Koper to Cisterniga | 958.50 mi (1,542.56 km) |
| Koper to Ciudad de Melilla | 1,124.46 mi (1,809.64 km) |
| Koper to Ciudad Real | 1,007.10 mi (1,620.78 km) |
| Koper to Ciudad-Rodrigo | 1,075.42 mi (1,730.72 km) |
| Koper to Cocentaina | 863.08 mi (1,389.00 km) |
