| Niel to Coin | 1,094.09 mi (1,760.77 km) |
| Niel to Colindres | 645.49 mi (1,038.82 km) |
| Niel to Collado-Villalba | 826.83 mi (1,330.65 km) |
| Niel to Colmenar Viejo | 819.71 mi (1,319.19 km) |
| Niel to Colmenarejo | 831.53 mi (1,338.21 km) |
| Niel to Conil de la Frontera | 1,147.83 mi (1,847.26 km) |
| Niel to Consuegra | 891.74 mi (1,435.11 km) |
| Niel to Corbera de Llobregat | 679.84 mi (1,094.10 km) |
| Niel to Cordoba | 1,016.77 mi (1,636.34 km) |
| Niel to Coria del Rio | 1,082.95 mi (1,742.83 km) |
| Niel to Crevillente | 923.71 mi (1,486.56 km) |
| Niel to Cuarte de Huerva | 704.22 mi (1,133.33 km) |
| Niel to Cubellas | 696.09 mi (1,120.26 km) |
| Niel to Cuellar | 786.99 mi (1,266.53 km) |
| Niel to Cuenca | 824.53 mi (1,326.95 km) |
