| Mentor to Coudekerque-Branche | 3,825.23 mi (6,156.11 km) |
| Mentor to Coueron | 3,771.10 mi (6,069.00 km) |
| Mentor to Coulommiers | 3,920.73 mi (6,309.81 km) |
| Mentor to Courbevoic | 3,884.52 mi (6,251.53 km) |
| Mentor to Courcouronnes | 3,900.25 mi (6,276.84 km) |
| Mentor to Cournon-d'Auvergne | 4,025.72 mi (6,478.77 km) |
| Mentor to Courrieres | 3,864.19 mi (6,218.81 km) |
| Mentor to Coutras | 3,906.87 mi (6,287.50 km) |
| Mentor to Couzeix | 3,938.43 mi (6,338.30 km) |
| Mentor to Cran-Gevrier | 4,141.68 mi (6,665.38 km) |
| Mentor to Craponne | 4,089.69 mi (6,581.72 km) |
| Mentor to Creil | 3,882.62 mi (6,248.48 km) |
| Mentor to Crepy-en-Valois | 3,899.64 mi (6,275.87 km) |
| Mentor to Crest | 4,137.58 mi (6,658.80 km) |
| Mentor to Creteil | 3,896.36 mi (6,270.58 km) |
