| Key Biscayne to Coudekerque-Branche | 4,544.06 mi (7,312.96 km) |
| Key Biscayne to Coueron | 4,411.28 mi (7,099.27 km) |
| Key Biscayne to Coulommiers | 4,606.49 mi (7,413.43 km) |
| Key Biscayne to Courbevoic | 4,568.41 mi (7,352.14 km) |
| Key Biscayne to Courcouronnes | 4,580.33 mi (7,371.33 km) |
| Key Biscayne to Cournon-d'Auvergne | 4,661.68 mi (7,502.24 km) |
| Key Biscayne to Courrieres | 4,575.87 mi (7,364.15 km) |
| Key Biscayne to Coutras | 4,515.87 mi (7,267.59 km) |
| Key Biscayne to Couzeix | 4,567.82 mi (7,351.20 km) |
| Key Biscayne to Cran-Gevrier | 4,793.81 mi (7,714.90 km) |
| Key Biscayne to Craponne | 4,732.77 mi (7,616.66 km) |
| Key Biscayne to Creil | 4,573.26 mi (7,359.95 km) |
| Key Biscayne to Crepy-en-Valois | 4,591.42 mi (7,389.17 km) |
| Key Biscayne to Crest | 4,765.63 mi (7,669.53 km) |
| Key Biscayne to Creteil | 4,579.31 mi (7,369.68 km) |
