| Diekirch to Chitila | 998.10 mi (1,606.29 km) |
| Diekirch to Cisnadie | 880.66 mi (1,417.28 km) |
| Diekirch to Cluj-Napoca | 826.76 mi (1,330.55 km) |
| Diekirch to Codlea | 937.59 mi (1,508.91 km) |
| Diekirch to Comanesti | 961.90 mi (1,548.04 km) |
| Diekirch to Comarnic | 959.28 mi (1,543.81 km) |
| Diekirch to Constanta | 1,124.44 mi (1,809.61 km) |
| Diekirch to Corabia | 960.82 mi (1,546.29 km) |
| Diekirch to Costesti | 945.24 mi (1,521.22 km) |
| Diekirch to Covasna | 965.78 mi (1,554.28 km) |
| Diekirch to Craiova | 911.48 mi (1,466.89 km) |
| Diekirch to Cristuru Secuiesc | 903.06 mi (1,453.33 km) |
| Diekirch to Cugir | 842.53 mi (1,355.92 km) |
| Diekirch to Cumpana | 1,122.84 mi (1,807.04 km) |
| Diekirch to Curtea de Arges | 921.25 mi (1,482.62 km) |
