| Black Forest to Cognac | 4,943.21 mi (7,955.32 km) |
| Black Forest to Cogolin | 5,310.95 mi (8,547.15 km) |
| Black Forest to Colmar | 5,118.38 mi (8,237.24 km) |
| Black Forest to Colombes | 4,901.82 mi (7,888.72 km) |
| Black Forest to Colomiers | 5,096.56 mi (8,202.13 km) |
| Black Forest to Combs-la-Ville | 4,923.68 mi (7,923.90 km) |
| Black Forest to Comines | 4,849.81 mi (7,805.02 km) |
| Black Forest to Compiegne | 4,901.02 mi (7,887.43 km) |
| Black Forest to Concarneau | 4,717.28 mi (7,591.72 km) |
| Black Forest to Conde-sur-l'Escaut | 4,883.23 mi (7,858.80 km) |
| Black Forest to Conflans-Sainte-Honorine | 4,893.11 mi (7,874.69 km) |
| Black Forest to Corbas | 5,140.51 mi (8,272.84 km) |
| Black Forest to Corbeil-Essonnes | 4,923.30 mi (7,923.28 km) |
| Black Forest to Cormeilles-en-Parisis | 4,897.86 mi (7,882.35 km) |
| Black Forest to Cosne sur Loire | 4,991.28 mi (8,032.70 km) |
