| Troisdorf to Cartagena | 996.67 mi (1,603.99 km) |
| Troisdorf to Cartama | 1,135.10 mi (1,826.77 km) |
| Troisdorf to Cartaya | 1,169.93 mi (1,882.82 km) |
| Troisdorf to Caspe | 745.71 mi (1,200.10 km) |
| Troisdorf to Cassa de la Selva | 649.41 mi (1,045.13 km) |
| Troisdorf to Castalla | 926.38 mi (1,490.87 km) |
| Troisdorf to Castellbisbal | 690.74 mi (1,111.65 km) |
| Troisdorf to Castelldefels | 703.69 mi (1,132.48 km) |
| Troisdorf to Castello de Ampurias | 622.04 mi (1,001.08 km) |
| Troisdorf to Castellon de la Plana | 824.80 mi (1,327.39 km) |
| Troisdorf to Castilleja de la Cuesta | 1,132.38 mi (1,822.39 km) |
| Troisdorf to Catarroja | 869.40 mi (1,399.16 km) |
| Troisdorf to Catral | 957.15 mi (1,540.39 km) |
| Troisdorf to Caudete | 925.98 mi (1,490.22 km) |
| Troisdorf to Cehegin | 982.12 mi (1,580.57 km) |
