| Diedorf to Ciampino | 461.28 mi (742.36 km) |
| Diedorf to Cicciano | 542.51 mi (873.08 km) |
| Diedorf to Cingoli | 363.88 mi (585.62 km) |
| Diedorf to Cinisello Balsamo | 206.80 mi (332.82 km) |
| Diedorf to Cinisi | 713.23 mi (1,147.84 km) |
| Diedorf to Cirie | 262.15 mi (421.88 km) |
| Diedorf to Ciro Marina | 696.15 mi (1,120.34 km) |
| Diedorf to Cislago | 204.91 mi (329.78 km) |
| Diedorf to Cisterna di Latina | 477.71 mi (768.81 km) |
| Diedorf to Cisternino | 619.72 mi (997.34 km) |
| Diedorf to Citta di Castello | 345.18 mi (555.51 km) |
| Diedorf to Citta Sant'Angelo | 433.23 mi (697.22 km) |
| Diedorf to Cittadella | 192.60 mi (309.96 km) |
| Diedorf to Cittanova | 740.30 mi (1,191.41 km) |
| Diedorf to Cividale del Friuli | 199.53 mi (321.12 km) |
