| Euclid to Coudekerque-Branche | 3,836.84 mi (6,174.79 km) |
| Euclid to Coueron | 3,782.75 mi (6,087.74 km) |
| Euclid to Coulommiers | 3,932.37 mi (6,328.54 km) |
| Euclid to Courbevoic | 3,896.16 mi (6,270.27 km) |
| Euclid to Courcouronnes | 3,911.89 mi (6,295.57 km) |
| Euclid to Cournon-d'Auvergne | 4,037.37 mi (6,497.52 km) |
| Euclid to Courrieres | 3,875.81 mi (6,237.51 km) |
| Euclid to Coutras | 3,918.51 mi (6,306.23 km) |
| Euclid to Couzeix | 3,950.08 mi (6,357.04 km) |
| Euclid to Cran-Gevrier | 4,153.32 mi (6,684.13 km) |
| Euclid to Craponne | 4,101.34 mi (6,600.47 km) |
| Euclid to Creil | 3,894.26 mi (6,267.20 km) |
| Euclid to Crepy-en-Valois | 3,911.27 mi (6,294.59 km) |
| Euclid to Crest | 4,149.23 mi (6,677.54 km) |
| Euclid to Creteil | 3,908.00 mi (6,289.32 km) |
