| Bad Honnef am Rhein to Coudekerque-Branche | 212.58 mi (342.11 km) |
| Bad Honnef am Rhein to Coueron | 469.84 mi (756.13 km) |
| Bad Honnef am Rhein to Coulommiers | 224.04 mi (360.56 km) |
| Bad Honnef am Rhein to Courbevoic | 252.58 mi (406.49 km) |
| Bad Honnef am Rhein to Courcouronnes | 256.03 mi (412.03 km) |
| Bad Honnef am Rhein to Cournon-d'Auvergne | 386.13 mi (621.41 km) |
| Bad Honnef am Rhein to Courrieres | 188.30 mi (303.04 km) |
| Bad Honnef am Rhein to Coutras | 515.53 mi (829.66 km) |
| Bad Honnef am Rhein to Couzeix | 429.18 mi (690.70 km) |
| Bad Honnef am Rhein to Cran-Gevrier | 331.63 mi (533.71 km) |
| Bad Honnef am Rhein to Craponne | 357.58 mi (575.47 km) |
| Bad Honnef am Rhein to Creil | 231.57 mi (372.68 km) |
| Bad Honnef am Rhein to Crepy-en-Valois | 216.13 mi (347.83 km) |
| Bad Honnef am Rhein to Crest | 421.42 mi (678.21 km) |
| Bad Honnef am Rhein to Creteil | 248.33 mi (399.64 km) |
