| Donaueschingen to Cologno al Serio | 173.25 mi (278.82 km) |
| Donaueschingen to Cologno Monzese | 171.49 mi (275.98 km) |
| Donaueschingen to Colorno | 227.02 mi (365.35 km) |
| Donaueschingen to Comacchio | 285.15 mi (458.90 km) |
| Donaueschingen to Comiso | 820.66 mi (1,320.73 km) |
| Donaueschingen to Como | 150.59 mi (242.35 km) |
| Donaueschingen to Concordia Sagittaria | 254.87 mi (410.18 km) |
| Donaueschingen to Concorezzo | 167.98 mi (270.34 km) |
| Donaueschingen to Conegliano | 228.95 mi (368.47 km) |
| Donaueschingen to Conselice | 285.77 mi (459.91 km) |
| Donaueschingen to Conselve | 246.56 mi (396.80 km) |
| Donaueschingen to Conversano | 642.19 mi (1,033.50 km) |
| Donaueschingen to Copertino | 710.50 mi (1,143.44 km) |
| Donaueschingen to Copparo | 263.86 mi (424.64 km) |
| Donaueschingen to Corato | 609.35 mi (980.65 km) |
