| Risca to Cocentaina | 897.91 mi (1,445.05 km) |
| Risca to Coin | 1,035.54 mi (1,666.55 km) |
| Risca to Colindres | 567.59 mi (913.45 km) |
| Risca to Collado-Villalba | 759.53 mi (1,222.35 km) |
| Risca to Colmenar Viejo | 757.19 mi (1,218.58 km) |
| Risca to Colmenarejo | 764.56 mi (1,230.44 km) |
| Risca to Conil de la Frontera | 1,070.15 mi (1,722.24 km) |
| Risca to Consuegra | 839.58 mi (1,351.17 km) |
| Risca to Corbera de Llobregat | 743.08 mi (1,195.87 km) |
| Risca to Cordoba | 951.75 mi (1,531.69 km) |
| Risca to Coria del Rio | 1,000.23 mi (1,609.71 km) |
| Risca to Crevillente | 929.65 mi (1,496.13 km) |
| Risca to Cuarte de Huerva | 700.20 mi (1,126.87 km) |
| Risca to Cubellas | 753.02 mi (1,211.87 km) |
| Risca to Cuellar | 707.61 mi (1,138.78 km) |
