| Ashtabula to Coudekerque-Branche | 3,795.57 mi (6,108.37 km) |
| Ashtabula to Coueron | 3,740.81 mi (6,020.24 km) |
| Ashtabula to Coulommiers | 3,890.80 mi (6,261.63 km) |
| Ashtabula to Courbevoic | 3,854.56 mi (6,203.31 km) |
| Ashtabula to Courcouronnes | 3,870.26 mi (6,228.58 km) |
| Ashtabula to Cournon-d'Auvergne | 3,995.46 mi (6,430.06 km) |
| Ashtabula to Courrieres | 3,834.47 mi (6,170.98 km) |
| Ashtabula to Coutras | 3,876.44 mi (6,238.53 km) |
| Ashtabula to Couzeix | 3,908.11 mi (6,289.50 km) |
| Ashtabula to Cran-Gevrier | 4,111.54 mi (6,616.88 km) |
| Ashtabula to Craponne | 4,059.48 mi (6,533.10 km) |
| Ashtabula to Creil | 3,852.72 mi (6,200.35 km) |
| Ashtabula to Crepy-en-Valois | 3,869.75 mi (6,227.76 km) |
| Ashtabula to Crest | 4,107.29 mi (6,610.05 km) |
| Ashtabula to Creteil | 3,866.39 mi (6,222.36 km) |
