| Harsum to Cognac | 647.12 mi (1,041.43 km) |
| Harsum to Cogolin | 638.60 mi (1,027.73 km) |
| Harsum to Colmar | 307.32 mi (494.59 km) |
| Harsum to Colombes | 406.91 mi (654.87 km) |
| Harsum to Colomiers | 714.36 mi (1,149.65 km) |
| Harsum to Combs-la-Ville | 406.75 mi (654.60 km) |
| Harsum to Comines | 315.19 mi (507.25 km) |
| Harsum to Compiegne | 366.17 mi (589.30 km) |
| Harsum to Concarneau | 683.21 mi (1,099.51 km) |
| Harsum to Conde-sur-l'Escaut | 300.44 mi (483.51 km) |
| Harsum to Conflans-Sainte-Honorine | 409.46 mi (658.96 km) |
| Harsum to Corbas | 506.38 mi (814.94 km) |
| Harsum to Corbeil-Essonnes | 411.97 mi (663.00 km) |
| Harsum to Cormeilles-en-Parisis | 406.70 mi (654.52 km) |
| Harsum to Cosne sur Loire | 455.85 mi (733.61 km) |
