| Olton to Coudekerque-Branche | 204.38 mi (328.91 km) |
| Olton to Coueron | 360.83 mi (580.70 km) |
| Olton to Coulommiers | 329.33 mi (530.01 km) |
| Olton to Courbevoic | 302.25 mi (486.42 km) |
| Olton to Courcouronnes | 322.42 mi (518.89 km) |
| Olton to Cournon-d'Auvergne | 514.73 mi (828.38 km) |
| Olton to Courrieres | 246.09 mi (396.04 km) |
| Olton to Coutras | 516.72 mi (831.58 km) |
| Olton to Couzeix | 473.66 mi (762.29 km) |
| Olton to Cran-Gevrier | 575.05 mi (925.45 km) |
| Olton to Craponne | 548.21 mi (882.26 km) |
| Olton to Creil | 288.46 mi (464.23 km) |
| Olton to Crepy-en-Valois | 301.42 mi (485.08 km) |
| Olton to Crest | 616.73 mi (992.53 km) |
| Olton to Creteil | 313.74 mi (504.91 km) |
