| Castricum to Coin | 1,188.80 mi (1,913.20 km) |
| Castricum to Colindres | 734.39 mi (1,181.89 km) |
| Castricum to Collado-Villalba | 919.10 mi (1,479.15 km) |
| Castricum to Colmenar Viejo | 912.46 mi (1,468.46 km) |
| Castricum to Colmenarejo | 923.87 mi (1,486.83 km) |
| Castricum to Conil de la Frontera | 1,240.77 mi (1,996.83 km) |
| Castricum to Consuegra | 986.08 mi (1,586.94 km) |
| Castricum to Corbera de Llobregat | 779.80 mi (1,254.97 km) |
| Castricum to Cordoba | 1,110.50 mi (1,787.17 km) |
| Castricum to Coria del Rio | 1,175.03 mi (1,891.02 km) |
| Castricum to Crevillente | 1,022.47 mi (1,645.50 km) |
| Castricum to Cuarte de Huerva | 801.39 mi (1,289.71 km) |
| Castricum to Cubellas | 795.98 mi (1,281.01 km) |
| Castricum to Cuellar | 877.45 mi (1,412.12 km) |
| Castricum to Cuenca | 920.82 mi (1,481.92 km) |
