| Karlovo to Cogolin | 923.47 mi (1,486.19 km) |
| Karlovo to Colmar | 924.08 mi (1,487.16 km) |
| Karlovo to Colombes | 1,164.72 mi (1,874.43 km) |
| Karlovo to Colomiers | 1,181.47 mi (1,901.39 km) |
| Karlovo to Combs-la-Ville | 1,147.09 mi (1,846.07 km) |
| Karlovo to Comines | 1,169.13 mi (1,881.53 km) |
| Karlovo to Compiegne | 1,148.26 mi (1,847.94 km) |
| Karlovo to Concarneau | 1,433.95 mi (2,307.72 km) |
| Karlovo to Conde-sur-l'Escaut | 1,137.71 mi (1,830.97 km) |
| Karlovo to Conflans-Sainte-Honorine | 1,172.72 mi (1,887.31 km) |
| Karlovo to Corbas | 1,005.81 mi (1,618.69 km) |
| Karlovo to Corbeil-Essonnes | 1,149.71 mi (1,850.28 km) |
| Karlovo to Cormeilles-en-Parisis | 1,167.77 mi (1,879.34 km) |
| Karlovo to Cosne sur Loire | 1,113.88 mi (1,792.61 km) |
| Karlovo to Coudekerque-Branche | 1,200.62 mi (1,932.21 km) |
