| Sammamish to Coudekerque-Branche | 4,869.01 mi (7,835.92 km) |
| Sammamish to Coueron | 4,967.40 mi (7,994.25 km) |
| Sammamish to Coulommiers | 5,010.91 mi (8,064.29 km) |
| Sammamish to Courbevoic | 4,984.33 mi (8,021.51 km) |
| Sammamish to Courcouronnes | 5,004.38 mi (8,053.78 km) |
| Sammamish to Cournon-d'Auvergne | 5,187.86 mi (8,349.06 km) |
| Sammamish to Courrieres | 4,915.00 mi (7,909.92 km) |
| Sammamish to Coutras | 5,133.27 mi (8,261.20 km) |
| Sammamish to Couzeix | 5,125.80 mi (8,249.17 km) |
| Sammamish to Cran-Gevrier | 5,256.73 mi (8,459.90 km) |
| Sammamish to Craponne | 5,229.17 mi (8,415.53 km) |
| Sammamish to Creil | 4,970.22 mi (7,998.80 km) |
| Sammamish to Crepy-en-Valois | 4,982.18 mi (8,018.05 km) |
| Sammamish to Crest | 5,295.68 mi (8,522.58 km) |
| Sammamish to Creteil | 4,995.89 mi (8,040.10 km) |
