| Bad Honnef am Rhein to Cesa | 748.23 mi (1,204.15 km) |
| Bad Honnef am Rhein to Cesano Maderno | 357.54 mi (575.40 km) |
| Bad Honnef am Rhein to Cesena | 506.82 mi (815.65 km) |
| Bad Honnef am Rhein to Cesenatico | 506.31 mi (814.83 km) |
| Bad Honnef am Rhein to Cetraro | 878.44 mi (1,413.72 km) |
| Bad Honnef am Rhein to Cherasco | 415.28 mi (668.33 km) |
| Bad Honnef am Rhein to Chiampo | 398.55 mi (641.41 km) |
| Bad Honnef am Rhein to Chiaravalle | 564.66 mi (908.74 km) |
| Bad Honnef am Rhein to Chiari | 374.69 mi (603.00 km) |
| Bad Honnef am Rhein to Chiavari | 448.12 mi (721.18 km) |
| Bad Honnef am Rhein to Chieri | 390.05 mi (627.72 km) |
| Bad Honnef am Rhein to Chieti | 660.71 mi (1,063.30 km) |
| Bad Honnef am Rhein to Chioggia | 441.59 mi (710.68 km) |
| Bad Honnef am Rhein to Chiusi | 572.10 mi (920.71 km) |
| Bad Honnef am Rhein to Chivasso | 378.07 mi (608.44 km) |
