| Radolfzell am Bodensee to Civita Castellana | 411.49 mi (662.24 km) |
| Radolfzell am Bodensee to Civitanova Marche | 383.35 mi (616.94 km) |
| Radolfzell am Bodensee to Civitavecchia | 413.10 mi (664.81 km) |
| Radolfzell am Bodensee to Civitella in Val di Chiana | 326.50 mi (525.46 km) |
| Radolfzell am Bodensee to Clusone | 136.01 mi (218.89 km) |
| Radolfzell am Bodensee to Coccaglio | 157.42 mi (253.34 km) |
| Radolfzell am Bodensee to Codigoro | 250.50 mi (403.14 km) |
| Radolfzell am Bodensee to Codogno | 181.24 mi (291.67 km) |
| Radolfzell am Bodensee to Codroipo | 225.62 mi (363.09 km) |
| Radolfzell am Bodensee to Cogoleto | 231.55 mi (372.65 km) |
| Radolfzell am Bodensee to Colle di Val d'Elsa | 317.18 mi (510.45 km) |
| Radolfzell am Bodensee to Colle Salvetti | 294.81 mi (474.44 km) |
| Radolfzell am Bodensee to Collecchio | 214.60 mi (345.36 km) |
| Radolfzell am Bodensee to Colleferro | 459.59 mi (739.64 km) |
| Radolfzell am Bodensee to Collegno | 195.14 mi (314.05 km) |
