| Diest to Catania | 1,053.70 mi (1,695.76 km) |
| Diest to Catanzaro | 1,005.43 mi (1,618.09 km) |
| Diest to Cattolica | 602.48 mi (969.60 km) |
| Diest to Cava de' Tirreni | 847.32 mi (1,363.63 km) |
| Diest to Cavallino | 969.98 mi (1,561.03 km) |
| Diest to Cavarzere | 517.82 mi (833.35 km) |
| Diest to Cave | 735.45 mi (1,183.59 km) |
| Diest to Cavriago | 502.84 mi (809.25 km) |
| Diest to Cavriglia | 597.17 mi (961.05 km) |
| Diest to Cazzago San Martino | 437.57 mi (704.20 km) |
| Diest to Ceccano | 760.41 mi (1,223.76 km) |
| Diest to Cecina | 588.37 mi (946.89 km) |
| Diest to Cefalu | 996.22 mi (1,603.27 km) |
| Diest to Ceglie Messapico | 929.74 mi (1,496.28 km) |
| Diest to Celano | 734.75 mi (1,182.47 km) |
