| Diekirch to Cividale del Friuli | 425.15 mi (684.21 km) |
| Diekirch to Civita Castellana | 602.43 mi (969.52 km) |
| Diekirch to Civitanova Marche | 578.51 mi (931.03 km) |
| Diekirch to Civitavecchia | 600.81 mi (966.91 km) |
| Diekirch to Civitella in Val di Chiana | 517.59 mi (832.99 km) |
| Diekirch to Clusone | 326.56 mi (525.55 km) |
| Diekirch to Coccaglio | 346.34 mi (557.38 km) |
| Diekirch to Codigoro | 445.63 mi (717.17 km) |
| Diekirch to Codogno | 364.91 mi (587.27 km) |
| Diekirch to Codroipo | 415.20 mi (668.20 km) |
| Diekirch to Cogoleto | 396.16 mi (637.55 km) |
| Diekirch to Colle di Val d'Elsa | 505.16 mi (812.98 km) |
| Diekirch to Colle Salvetti | 478.90 mi (770.72 km) |
| Diekirch to Collecchio | 401.39 mi (645.97 km) |
| Diekirch to Colleferro | 651.36 mi (1,048.26 km) |
