| Troisdorf to Chitila | 974.72 mi (1,568.67 km) |
| Troisdorf to Cisnadie | 854.96 mi (1,375.92 km) |
| Troisdorf to Cluj-Napoca | 796.32 mi (1,281.55 km) |
| Troisdorf to Codlea | 909.56 mi (1,463.79 km) |
| Troisdorf to Comanesti | 928.65 mi (1,494.51 km) |
| Troisdorf to Comarnic | 933.07 mi (1,501.64 km) |
| Troisdorf to Constanta | 1,097.70 mi (1,766.57 km) |
| Troisdorf to Corabia | 944.00 mi (1,519.21 km) |
| Troisdorf to Costesti | 923.34 mi (1,485.96 km) |
| Troisdorf to Covasna | 935.74 mi (1,505.93 km) |
| Troisdorf to Craiova | 893.58 mi (1,438.08 km) |
| Troisdorf to Cristuru Secuiesc | 872.71 mi (1,404.50 km) |
| Troisdorf to Cugir | 817.70 mi (1,315.96 km) |
| Troisdorf to Cumpana | 1,096.45 mi (1,764.57 km) |
| Troisdorf to Curtea de Arges | 897.45 mi (1,444.31 km) |
