| Diedorf to Catania | 780.59 mi (1,256.23 km) |
| Diedorf to Catanzaro | 714.62 mi (1,150.07 km) |
| Diedorf to Cattolica | 317.11 mi (510.35 km) |
| Diedorf to Cava de' Tirreni | 562.76 mi (905.67 km) |
| Diedorf to Cavallino | 664.90 mi (1,070.05 km) |
| Diedorf to Cavarzere | 230.55 mi (371.04 km) |
| Diedorf to Cave | 463.56 mi (746.03 km) |
| Diedorf to Cavriago | 252.43 mi (406.25 km) |
| Diedorf to Cavriglia | 335.71 mi (540.28 km) |
| Diedorf to Cazzago San Martino | 194.43 mi (312.91 km) |
| Diedorf to Ceccano | 485.11 mi (780.71 km) |
| Diedorf to Cecina | 347.97 mi (560.01 km) |
| Diedorf to Cefalu | 731.19 mi (1,176.74 km) |
| Diedorf to Ceglie Messapico | 626.45 mi (1,008.18 km) |
| Diedorf to Celano | 453.50 mi (729.84 km) |
