| Olean to Coudekerque-Branche | 3,693.32 mi (5,943.82 km) |
| Olean to Coueron | 3,632.40 mi (5,845.79 km) |
| Olean to Coulommiers | 3,786.05 mi (6,093.05 km) |
| Olean to Courbevoic | 3,749.58 mi (6,034.37 km) |
| Olean to Courcouronnes | 3,765.02 mi (6,059.22 km) |
| Olean to Cournon-d'Auvergne | 3,887.31 mi (6,256.02 km) |
| Olean to Courrieres | 3,731.70 mi (6,005.59 km) |
| Olean to Coutras | 3,766.31 mi (6,061.29 km) |
| Olean to Couzeix | 3,799.35 mi (6,114.46 km) |
| Olean to Cran-Gevrier | 4,004.75 mi (6,445.02 km) |
| Olean to Craponne | 3,951.95 mi (6,360.05 km) |
| Olean to Creil | 3,748.27 mi (6,032.25 km) |
| Olean to Crepy-en-Valois | 3,765.43 mi (6,059.87 km) |
| Olean to Crest | 3,998.84 mi (6,435.52 km) |
| Olean to Creteil | 3,761.37 mi (6,053.34 km) |
