| Romeoville to Coudekerque-Branche | 4,088.48 mi (6,579.77 km) |
| Romeoville to Coueron | 4,055.16 mi (6,526.15 km) |
| Romeoville to Coulommiers | 4,192.00 mi (6,746.37 km) |
| Romeoville to Courbevoic | 4,156.65 mi (6,689.48 km) |
| Romeoville to Courcouronnes | 4,173.20 mi (6,716.11 km) |
| Romeoville to Cournon-d'Auvergne | 4,308.28 mi (6,933.50 km) |
| Romeoville to Courrieres | 4,129.04 mi (6,645.04 km) |
| Romeoville to Coutras | 4,196.63 mi (6,753.82 km) |
| Romeoville to Couzeix | 4,223.34 mi (6,796.81 km) |
| Romeoville to Cran-Gevrier | 4,419.27 mi (7,112.12 km) |
| Romeoville to Craponne | 4,369.96 mi (7,032.77 km) |
| Romeoville to Creil | 4,153.00 mi (6,683.60 km) |
| Romeoville to Crepy-en-Valois | 4,169.53 mi (6,710.21 km) |
| Romeoville to Crest | 4,420.93 mi (7,114.80 km) |
| Romeoville to Creteil | 4,168.61 mi (6,708.73 km) |
