| Harlau to Cognac | 1,292.96 mi (2,080.82 km) |
| Harlau to Cogolin | 1,027.61 mi (1,653.77 km) |
| Harlau to Colmar | 907.08 mi (1,459.80 km) |
| Harlau to Colombes | 1,135.82 mi (1,827.93 km) |
| Harlau to Colomiers | 1,259.73 mi (2,027.33 km) |
| Harlau to Combs-la-Ville | 1,123.22 mi (1,807.65 km) |
| Harlau to Comines | 1,100.57 mi (1,771.20 km) |
| Harlau to Compiegne | 1,108.22 mi (1,783.51 km) |
| Harlau to Concarneau | 1,425.72 mi (2,294.47 km) |
| Harlau to Conde-sur-l'Escaut | 1,074.11 mi (1,728.62 km) |
| Harlau to Conflans-Sainte-Honorine | 1,142.42 mi (1,838.54 km) |
| Harlau to Corbas | 1,049.34 mi (1,688.75 km) |
| Harlau to Corbeil-Essonnes | 1,127.10 mi (1,813.90 km) |
| Harlau to Cormeilles-en-Parisis | 1,137.87 mi (1,831.23 km) |
| Harlau to Cosne sur Loire | 1,116.91 mi (1,797.49 km) |
