| Grays to Coudekerque-Branche | 94.42 mi (151.95 km) |
| Grays to Coueron | 308.43 mi (496.37 km) |
| Grays to Coulommiers | 220.48 mi (354.83 km) |
| Grays to Courbevoic | 197.33 mi (317.57 km) |
| Grays to Courcouronnes | 217.88 mi (350.64 km) |
| Grays to Cournon-d'Auvergne | 417.11 mi (671.27 km) |
| Grays to Courrieres | 133.80 mi (215.33 km) |
| Grays to Coutras | 445.06 mi (716.25 km) |
| Grays to Couzeix | 389.05 mi (626.12 km) |
| Grays to Cran-Gevrier | 466.09 mi (750.10 km) |
| Grays to Craponne | 443.66 mi (713.99 km) |
| Grays to Creil | 180.16 mi (289.94 km) |
| Grays to Crepy-en-Valois | 191.49 mi (308.17 km) |
| Grays to Crest | 513.71 mi (826.74 km) |
| Grays to Creteil | 208.09 mi (334.89 km) |
