| Radolfzell am Bodensee to Ciampino | 446.89 mi (719.20 km) |
| Radolfzell am Bodensee to Cicciano | 542.08 mi (872.40 km) |
| Radolfzell am Bodensee to Cingoli | 364.99 mi (587.39 km) |
| Radolfzell am Bodensee to Cinisello Balsamo | 151.32 mi (243.52 km) |
| Radolfzell am Bodensee to Cinisi | 692.98 mi (1,115.25 km) |
| Radolfzell am Bodensee to Cirie | 184.42 mi (296.80 km) |
| Radolfzell am Bodensee to Ciro Marina | 706.92 mi (1,137.68 km) |
| Radolfzell am Bodensee to Cislago | 143.94 mi (231.65 km) |
| Radolfzell am Bodensee to Cisterna di Latina | 464.75 mi (747.94 km) |
| Radolfzell am Bodensee to Cisternino | 639.22 mi (1,028.73 km) |
| Radolfzell am Bodensee to Citta di Castello | 334.95 mi (539.06 km) |
| Radolfzell am Bodensee to Citta Sant'Angelo | 437.18 mi (703.58 km) |
| Radolfzell am Bodensee to Cittadella | 196.28 mi (315.89 km) |
| Radolfzell am Bodensee to Cittanova | 740.50 mi (1,191.73 km) |
| Radolfzell am Bodensee to Cividale del Friuli | 239.05 mi (384.72 km) |
