| Blackrock to Coudekerque-Branche | 395.46 mi (636.43 km) |
| Blackrock to Coueron | 464.04 mi (746.81 km) |
| Blackrock to Coulommiers | 507.10 mi (816.10 km) |
| Blackrock to Courbevoic | 475.26 mi (764.86 km) |
| Blackrock to Courcouronnes | 494.12 mi (795.21 km) |
| Blackrock to Cournon-d'Auvergne | 669.38 mi (1,077.26 km) |
| Blackrock to Courrieres | 435.54 mi (700.93 km) |
| Blackrock to Coutras | 632.25 mi (1,017.51 km) |
| Blackrock to Couzeix | 610.48 mi (982.47 km) |
| Blackrock to Cran-Gevrier | 748.92 mi (1,205.28 km) |
| Blackrock to Craponne | 713.74 mi (1,148.66 km) |
| Blackrock to Creil | 466.55 mi (750.84 km) |
| Blackrock to Crepy-en-Valois | 481.65 mi (775.14 km) |
| Blackrock to Crest | 778.21 mi (1,252.41 km) |
| Blackrock to Creteil | 487.26 mi (784.18 km) |
