| Helston to Coudekerque-Branche | 342.13 mi (550.61 km) |
| Helston to Coueron | 256.70 mi (413.12 km) |
| Helston to Coulommiers | 385.30 mi (620.08 km) |
| Helston to Courbevoic | 347.49 mi (559.23 km) |
| Helston to Courcouronnes | 360.97 mi (580.93 km) |
| Helston to Cournon-d'Auvergne | 493.83 mi (794.74 km) |
| Helston to Courrieres | 363.48 mi (584.96 km) |
| Helston to Coutras | 423.60 mi (681.71 km) |
| Helston to Couzeix | 418.94 mi (674.22 km) |
| Helston to Cran-Gevrier | 599.56 mi (964.90 km) |
| Helston to Craponne | 551.22 mi (887.11 km) |
| Helston to Creil | 351.31 mi (565.38 km) |
| Helston to Crepy-en-Valois | 369.47 mi (594.61 km) |
| Helston to Crest | 606.80 mi (976.55 km) |
| Helston to Creteil | 358.77 mi (577.39 km) |
