| Harsum to Coudekerque-Branche | 334.61 mi (538.50 km) |
| Harsum to Coueron | 624.40 mi (1,004.88 km) |
| Harsum to Coulommiers | 382.02 mi (614.79 km) |
| Harsum to Courbevoic | 407.95 mi (656.53 km) |
| Harsum to Courcouronnes | 413.38 mi (665.26 km) |
| Harsum to Cournon-d'Auvergne | 541.23 mi (871.03 km) |
| Harsum to Courrieres | 325.76 mi (524.26 km) |
| Harsum to Coutras | 675.06 mi (1,086.40 km) |
| Harsum to Couzeix | 588.48 mi (947.07 km) |
| Harsum to Cran-Gevrier | 468.95 mi (754.70 km) |
| Harsum to Craponne | 505.28 mi (813.18 km) |
| Harsum to Creil | 384.91 mi (619.45 km) |
| Harsum to Crepy-en-Valois | 371.03 mi (597.11 km) |
| Harsum to Crest | 563.65 mi (907.10 km) |
| Harsum to Creteil | 404.92 mi (651.65 km) |
