| Troisdorf to Coin | 1,140.87 mi (1,836.06 km) |
| Troisdorf to Colindres | 713.81 mi (1,148.77 km) |
| Troisdorf to Collado-Villalba | 883.92 mi (1,422.54 km) |
| Troisdorf to Colmenar Viejo | 875.46 mi (1,408.92 km) |
| Troisdorf to Colmenarejo | 888.35 mi (1,429.66 km) |
| Troisdorf to Conil de la Frontera | 1,200.20 mi (1,931.53 km) |
| Troisdorf to Consuegra | 941.55 mi (1,515.27 km) |
| Troisdorf to Corbera de Llobregat | 695.51 mi (1,119.32 km) |
| Troisdorf to Cordoba | 1,067.57 mi (1,718.09 km) |
| Troisdorf to Coria del Rio | 1,138.32 mi (1,831.95 km) |
| Troisdorf to Crevillente | 951.49 mi (1,531.28 km) |
| Troisdorf to Cuarte de Huerva | 744.63 mi (1,198.36 km) |
| Troisdorf to Cubellas | 713.45 mi (1,148.18 km) |
| Troisdorf to Cuellar | 849.48 mi (1,367.10 km) |
| Troisdorf to Cuenca | 867.44 mi (1,396.01 km) |
