| Biga to Cocentaina | 1,473.73 mi (2,371.74 km) |
| Biga to Coin | 1,739.01 mi (2,798.67 km) |
| Biga to Colindres | 1,586.45 mi (2,553.15 km) |
| Biga to Collado-Villalba | 1,635.09 mi (2,631.42 km) |
| Biga to Colmenar Viejo | 1,622.26 mi (2,610.77 km) |
| Biga to Colmenarejo | 1,636.35 mi (2,633.46 km) |
| Biga to Conil de la Frontera | 1,818.03 mi (2,925.84 km) |
| Biga to Consuegra | 1,629.05 mi (2,621.71 km) |
| Biga to Corbera de Llobregat | 1,321.22 mi (2,126.30 km) |
| Biga to Cordoba | 1,716.32 mi (2,762.16 km) |
| Biga to Coria del Rio | 1,794.71 mi (2,888.31 km) |
| Biga to Crevillente | 1,501.07 mi (2,415.74 km) |
| Biga to Cuarte de Huerva | 1,466.91 mi (2,360.76 km) |
| Biga to Cubellas | 1,335.84 mi (2,149.83 km) |
| Biga to Cuellar | 1,642.97 mi (2,644.10 km) |
