| Donaueschingen to Ciampino | 469.91 mi (756.24 km) |
| Donaueschingen to Cicciano | 566.55 mi (911.77 km) |
| Donaueschingen to Cingoli | 390.00 mi (627.64 km) |
| Donaueschingen to Cinisello Balsamo | 169.44 mi (272.68 km) |
| Donaueschingen to Cinisi | 714.54 mi (1,149.95 km) |
| Donaueschingen to Cirie | 192.61 mi (309.98 km) |
| Donaueschingen to Ciro Marina | 732.20 mi (1,178.36 km) |
| Donaueschingen to Cislago | 160.63 mi (258.51 km) |
| Donaueschingen to Cisterna di Latina | 487.91 mi (785.21 km) |
| Donaueschingen to Cisternino | 665.10 mi (1,070.38 km) |
| Donaueschingen to Citta di Castello | 358.94 mi (577.66 km) |
| Donaueschingen to Citta Sant'Angelo | 462.25 mi (743.92 km) |
| Donaueschingen to Cittadella | 222.19 mi (357.59 km) |
| Donaueschingen to Cittanova | 764.78 mi (1,230.79 km) |
| Donaueschingen to Cividale del Friuli | 265.08 mi (426.61 km) |
