| Radolfzell am Bodensee to Chitila | 842.85 mi (1,356.44 km) |
| Radolfzell am Bodensee to Cisnadie | 731.36 mi (1,177.02 km) |
| Radolfzell am Bodensee to Cluj-Napoca | 687.74 mi (1,106.80 km) |
| Radolfzell am Bodensee to Codlea | 791.56 mi (1,273.89 km) |
| Radolfzell am Bodensee to Comanesti | 825.71 mi (1,328.86 km) |
| Radolfzell am Bodensee to Comarnic | 809.52 mi (1,302.79 km) |
| Radolfzell am Bodensee to Constanta | 973.43 mi (1,566.59 km) |
| Radolfzell am Bodensee to Corabia | 795.72 mi (1,280.59 km) |
| Radolfzell am Bodensee to Costesti | 788.28 mi (1,268.61 km) |
| Radolfzell am Bodensee to Covasna | 823.09 mi (1,324.64 km) |
| Radolfzell am Bodensee to Craiova | 748.65 mi (1,204.83 km) |
| Radolfzell am Bodensee to Cristuru Secuiesc | 762.12 mi (1,226.51 km) |
| Radolfzell am Bodensee to Cugir | 692.42 mi (1,114.34 km) |
| Radolfzell am Bodensee to Cumpana | 971.24 mi (1,563.06 km) |
| Radolfzell am Bodensee to Curtea de Arges | 767.87 mi (1,235.77 km) |
