| Hardenberg to Cognac | 568.61 mi (915.09 km) |
| Hardenberg to Cogolin | 643.56 mi (1,035.71 km) |
| Hardenberg to Colmar | 311.59 mi (501.45 km) |
| Hardenberg to Colombes | 315.74 mi (508.14 km) |
| Hardenberg to Colomiers | 664.40 mi (1,069.24 km) |
| Hardenberg to Combs-la-Ville | 322.55 mi (519.10 km) |
| Hardenberg to Comines | 198.67 mi (319.72 km) |
| Hardenberg to Compiegne | 273.13 mi (439.56 km) |
| Hardenberg to Concarneau | 566.56 mi (911.79 km) |
| Hardenberg to Conde-sur-l'Escaut | 195.77 mi (315.06 km) |
| Hardenberg to Conflans-Sainte-Honorine | 315.65 mi (508.00 km) |
| Hardenberg to Corbas | 482.88 mi (777.11 km) |
| Hardenberg to Corbeil-Essonnes | 327.73 mi (527.42 km) |
| Hardenberg to Cormeilles-en-Parisis | 314.27 mi (505.77 km) |
| Hardenberg to Cosne sur Loire | 392.08 mi (630.99 km) |
