| Harnes to Coin | 1,024.93 mi (1,649.47 km) |
| Harnes to Colindres | 571.42 mi (919.61 km) |
| Harnes to Collado-Villalba | 755.21 mi (1,215.39 km) |
| Harnes to Colmenar Viejo | 748.52 mi (1,204.62 km) |
| Harnes to Colmenarejo | 759.98 mi (1,223.06 km) |
| Harnes to Conil de la Frontera | 1,076.83 mi (1,732.99 km) |
| Harnes to Consuegra | 822.17 mi (1,323.15 km) |
| Harnes to Corbera de Llobregat | 625.52 mi (1,006.68 km) |
| Harnes to Cordoba | 946.53 mi (1,523.29 km) |
| Harnes to Coria del Rio | 1,011.19 mi (1,627.36 km) |
| Harnes to Crevillente | 862.16 mi (1,387.51 km) |
| Harnes to Cuarte de Huerva | 638.94 mi (1,028.27 km) |
| Harnes to Cubellas | 640.80 mi (1,031.27 km) |
| Harnes to Cuellar | 713.97 mi (1,149.02 km) |
| Harnes to Cuenca | 757.61 mi (1,219.25 km) |
