| Boulogne-Billancourt to Coin | 911.55 mi (1,467.00 km) |
| Boulogne-Billancourt to Colindres | 463.87 mi (746.53 km) |
| Boulogne-Billancourt to Collado-Villalba | 643.85 mi (1,036.18 km) |
| Boulogne-Billancourt to Colmenar Viejo | 636.71 mi (1,024.69 km) |
| Boulogne-Billancourt to Colmenarejo | 648.55 mi (1,043.73 km) |
| Boulogne-Billancourt to Conil de la Frontera | 964.85 mi (1,552.78 km) |
| Boulogne-Billancourt to Consuegra | 709.02 mi (1,141.06 km) |
| Boulogne-Billancourt to Corbera de Llobregat | 512.78 mi (825.23 km) |
| Boulogne-Billancourt to Cordoba | 833.90 mi (1,342.03 km) |
| Boulogne-Billancourt to Coria del Rio | 899.97 mi (1,448.36 km) |
| Boulogne-Billancourt to Crevillente | 747.07 mi (1,202.30 km) |
| Boulogne-Billancourt to Cuarte de Huerva | 523.98 mi (843.26 km) |
| Boulogne-Billancourt to Cubellas | 527.57 mi (849.05 km) |
| Boulogne-Billancourt to Cuellar | 604.43 mi (972.74 km) |
| Boulogne-Billancourt to Cuenca | 643.10 mi (1,034.98 km) |
