| Bad Honnef am Rhein to Corbetta | 366.17 mi (589.29 km) |
| Bad Honnef am Rhein to Corciano | 570.96 mi (918.87 km) |
| Bad Honnef am Rhein to Cordenons | 408.41 mi (657.27 km) |
| Bad Honnef am Rhein to Cori | 678.33 mi (1,091.67 km) |
| Bad Honnef am Rhein to Coriano | 525.29 mi (845.38 km) |
| Bad Honnef am Rhein to Corigliano Calabro | 885.83 mi (1,425.61 km) |
| Bad Honnef am Rhein to Corleone | 935.16 mi (1,504.99 km) |
| Bad Honnef am Rhein to Cormano | 363.20 mi (584.51 km) |
| Bad Honnef am Rhein to Cornaredo | 365.11 mi (587.58 km) |
| Bad Honnef am Rhein to Cornate d'Adda | 360.19 mi (579.67 km) |
| Bad Honnef am Rhein to Cornedo Vicentino | 395.90 mi (637.14 km) |
| Bad Honnef am Rhein to Correggio | 438.14 mi (705.12 km) |
| Bad Honnef am Rhein to Corridonia | 590.33 mi (950.05 km) |
| Bad Honnef am Rhein to Corsico | 370.49 mi (596.25 km) |
| Bad Honnef am Rhein to Cortona | 556.19 mi (895.10 km) |
