| Donaueschingen to Cesme | 1,112.69 mi (1,790.70 km) |
| Donaueschingen to Ceyhan | 1,571.00 mi (2,528.28 km) |
| Donaueschingen to Ceylanpinar | 1,766.63 mi (2,843.12 km) |
| Donaueschingen to Cicekdagi | 1,406.33 mi (2,263.27 km) |
| Donaueschingen to Cide | 1,263.25 mi (2,033.01 km) |
| Donaueschingen to Cifteler | 1,265.91 mi (2,037.29 km) |
| Donaueschingen to Ciftlik | 1,465.72 mi (2,358.85 km) |
| Donaueschingen to Ciftlikkoy | 1,141.23 mi (1,836.63 km) |
| Donaueschingen to Cihanbeyli | 1,377.55 mi (2,216.96 km) |
| Donaueschingen to Cildir | 1,753.03 mi (2,821.22 km) |
| Donaueschingen to Cilimli | 1,208.82 mi (1,945.41 km) |
| Donaueschingen to Cinar | 1,748.42 mi (2,813.82 km) |
| Donaueschingen to Cinarcik | 1,133.00 mi (1,823.39 km) |
| Donaueschingen to Cine | 1,216.65 mi (1,958.00 km) |
| Donaueschingen to Civril | 1,255.13 mi (2,019.94 km) |
