| Donaueschingen to Chitila | 866.50 mi (1,394.50 km) |
| Donaueschingen to Cisnadie | 754.26 mi (1,213.86 km) |
| Donaueschingen to Cluj-Napoca | 709.38 mi (1,141.64 km) |
| Donaueschingen to Codlea | 814.16 mi (1,310.26 km) |
| Donaueschingen to Comanesti | 847.23 mi (1,363.49 km) |
| Donaueschingen to Comarnic | 832.55 mi (1,339.85 km) |
| Donaueschingen to Constanta | 996.73 mi (1,604.09 km) |
| Donaueschingen to Corabia | 820.33 mi (1,320.20 km) |
| Donaueschingen to Costesti | 812.06 mi (1,306.89 km) |
| Donaueschingen to Covasna | 845.35 mi (1,360.47 km) |
| Donaueschingen to Craiova | 773.00 mi (1,244.03 km) |
| Donaueschingen to Cristuru Secuiesc | 784.10 mi (1,261.89 km) |
| Donaueschingen to Cugir | 715.35 mi (1,151.25 km) |
| Donaueschingen to Cumpana | 994.60 mi (1,600.65 km) |
| Donaueschingen to Curtea de Arges | 791.26 mi (1,273.40 km) |
