| Diekirch to Castrovillari | 849.48 mi (1,367.11 km) |
| Diekirch to Catania | 962.51 mi (1,549.00 km) |
| Diekirch to Catanzaro | 914.72 mi (1,472.09 km) |
| Diekirch to Cattolica | 512.01 mi (824.01 km) |
| Diekirch to Cava de' Tirreni | 756.37 mi (1,217.26 km) |
| Diekirch to Cavallino | 881.33 mi (1,418.37 km) |
| Diekirch to Cavarzere | 427.91 mi (688.65 km) |
| Diekirch to Cave | 644.25 mi (1,036.82 km) |
| Diekirch to Cavriago | 411.64 mi (662.47 km) |
| Diekirch to Cavriglia | 505.96 mi (814.26 km) |
| Diekirch to Cazzago San Martino | 346.37 mi (557.43 km) |
| Diekirch to Ceccano | 669.25 mi (1,077.05 km) |
| Diekirch to Cecina | 497.53 mi (800.70 km) |
| Diekirch to Cefalu | 905.17 mi (1,456.72 km) |
| Diekirch to Ceglie Messapico | 840.74 mi (1,353.03 km) |
