| Gourock to Cocentaina | 1,205.93 mi (1,940.76 km) |
| Gourock to Coin | 1,332.61 mi (2,144.63 km) |
| Gourock to Colindres | 869.72 mi (1,399.68 km) |
| Gourock to Collado-Villalba | 1,059.18 mi (1,704.58 km) |
| Gourock to Colmenar Viejo | 1,057.85 mi (1,702.44 km) |
| Gourock to Colmenarejo | 1,064.17 mi (1,712.62 km) |
| Gourock to Conil de la Frontera | 1,361.54 mi (2,191.19 km) |
| Gourock to Consuegra | 1,140.83 mi (1,835.98 km) |
| Gourock to Corbera de Llobregat | 1,049.30 mi (1,688.69 km) |
| Gourock to Cordoba | 1,248.47 mi (2,009.22 km) |
| Gourock to Coria del Rio | 1,291.28 mi (2,078.12 km) |
| Gourock to Crevillente | 1,237.23 mi (1,991.14 km) |
| Gourock to Cuarte de Huerva | 1,008.26 mi (1,622.64 km) |
| Gourock to Cubellas | 1,059.88 mi (1,705.71 km) |
| Gourock to Cuellar | 1,005.76 mi (1,618.62 km) |
