| Mattoon to Coudekerque-Branche | 4,200.79 mi (6,760.53 km) |
| Mattoon to Coueron | 4,157.76 mi (6,691.27 km) |
| Mattoon to Coulommiers | 4,300.88 mi (6,921.60 km) |
| Mattoon to Courbevoic | 4,265.12 mi (6,864.04 km) |
| Mattoon to Courcouronnes | 4,281.30 mi (6,890.08 km) |
| Mattoon to Cournon-d'Auvergne | 4,411.77 mi (7,100.06 km) |
| Mattoon to Courrieres | 4,240.70 mi (6,824.75 km) |
| Mattoon to Coutras | 4,296.23 mi (6,914.11 km) |
| Mattoon to Couzeix | 4,325.58 mi (6,961.34 km) |
| Mattoon to Cran-Gevrier | 4,525.29 mi (7,282.75 km) |
| Mattoon to Craponne | 4,474.64 mi (7,201.24 km) |
| Mattoon to Creil | 4,262.26 mi (6,859.44 km) |
| Mattoon to Crepy-en-Valois | 4,279.02 mi (6,886.42 km) |
| Mattoon to Crest | 4,524.06 mi (7,280.78 km) |
| Mattoon to Creteil | 4,277.03 mi (6,883.21 km) |
