| Round Lake Beach to Coudekerque-Branche | 4,052.74 mi (6,522.25 km) |
| Round Lake Beach to Coueron | 4,023.11 mi (6,474.57 km) |
| Round Lake Beach to Coulommiers | 4,157.54 mi (6,690.91 km) |
| Round Lake Beach to Courbevoic | 4,122.35 mi (6,634.28 km) |
| Round Lake Beach to Courcouronnes | 4,139.04 mi (6,661.13 km) |
| Round Lake Beach to Cournon-d'Auvergne | 4,275.82 mi (6,881.27 km) |
| Round Lake Beach to Courrieres | 4,093.53 mi (6,587.90 km) |
| Round Lake Beach to Coutras | 4,165.66 mi (6,703.99 km) |
| Round Lake Beach to Couzeix | 4,191.38 mi (6,745.37 km) |
| Round Lake Beach to Cran-Gevrier | 4,385.83 mi (7,058.32 km) |
| Round Lake Beach to Craponne | 4,337.04 mi (6,979.80 km) |
| Round Lake Beach to Creil | 4,118.40 mi (6,627.92 km) |
| Round Lake Beach to Crepy-en-Valois | 4,134.85 mi (6,654.39 km) |
| Round Lake Beach to Crest | 4,388.58 mi (7,062.74 km) |
| Round Lake Beach to Creteil | 4,134.33 mi (6,653.56 km) |
