| Gagny to Coin | 920.32 mi (1,481.11 km) |
| Gagny to Colindres | 474.77 mi (764.07 km) |
| Gagny to Collado-Villalba | 653.58 mi (1,051.84 km) |
| Gagny to Colmenar Viejo | 646.28 mi (1,040.09 km) |
| Gagny to Colmenarejo | 658.25 mi (1,059.35 km) |
| Gagny to Conil de la Frontera | 974.26 mi (1,567.92 km) |
| Gagny to Consuegra | 717.97 mi (1,155.46 km) |
| Gagny to Corbera de Llobregat | 516.71 mi (831.56 km) |
| Gagny to Cordoba | 843.06 mi (1,356.77 km) |
| Gagny to Coria del Rio | 909.67 mi (1,463.97 km) |
| Gagny to Crevillente | 753.40 mi (1,212.47 km) |
| Gagny to Cuarte de Huerva | 531.43 mi (855.26 km) |
| Gagny to Cubellas | 531.82 mi (855.89 km) |
| Gagny to Cuellar | 614.75 mi (989.34 km) |
| Gagny to Cuenca | 651.13 mi (1,047.90 km) |
