| Grass Valley to Coudekerque-Branche | 5,327.84 mi (8,574.32 km) |
| Grass Valley to Coueron | 5,395.62 mi (8,683.40 km) |
| Grass Valley to Coulommiers | 5,463.05 mi (8,791.93 km) |
| Grass Valley to Courbevoic | 5,433.97 mi (8,745.13 km) |
| Grass Valley to Courcouronnes | 5,453.49 mi (8,776.55 km) |
| Grass Valley to Cournon-d'Auvergne | 5,627.85 mi (9,057.14 km) |
| Grass Valley to Courrieres | 5,373.31 mi (8,647.50 km) |
| Grass Valley to Coutras | 5,557.55 mi (8,944.02 km) |
| Grass Valley to Couzeix | 5,559.00 mi (8,946.34 km) |
| Grass Valley to Cran-Gevrier | 5,708.13 mi (9,186.34 km) |
| Grass Valley to Craponne | 5,674.85 mi (9,132.79 km) |
| Grass Valley to Creil | 5,422.13 mi (8,726.07 km) |
| Grass Valley to Crepy-en-Valois | 5,435.35 mi (8,747.35 km) |
| Grass Valley to Crest | 5,738.47 mi (9,235.18 km) |
| Grass Valley to Creteil | 5,445.80 mi (8,764.17 km) |
