| Radolfzell am Bodensee to Cosenza | 686.82 mi (1,105.32 km) |
| Radolfzell am Bodensee to Cossato | 154.43 mi (248.53 km) |
| Radolfzell am Bodensee to Costa Volpino | 141.96 mi (228.46 km) |
| Radolfzell am Bodensee to Creazzo | 193.27 mi (311.03 km) |
| Radolfzell am Bodensee to Crema | 167.02 mi (268.80 km) |
| Radolfzell am Bodensee to Cremona | 186.68 mi (300.43 km) |
| Radolfzell am Bodensee to Crevalcore | 233.07 mi (375.09 km) |
| Radolfzell am Bodensee to Crispiano | 640.16 mi (1,030.23 km) |
| Radolfzell am Bodensee to Crosia | 685.11 mi (1,102.58 km) |
| Radolfzell am Bodensee to Crotone | 723.35 mi (1,164.12 km) |
| Radolfzell am Bodensee to Cuneo | 241.21 mi (388.19 km) |
| Radolfzell am Bodensee to Cuorgne | 173.59 mi (279.36 km) |
| Radolfzell am Bodensee to Cusano Milanino | 151.20 mi (243.33 km) |
| Radolfzell am Bodensee to Cutro | 722.58 mi (1,162.88 km) |
| Radolfzell am Bodensee to Cutrofiano | 697.62 mi (1,122.72 km) |
