| Duchcov to Cookeville (Tennessee) | 4,703.51 mi (7,569.56 km) |
| Duchcov to Coolidge (Arizona) | 5,771.81 mi (9,288.83 km) |
| Duchcov to Coon Rapids (Minnesota) | 4,516.09 mi (7,267.94 km) |
| Duchcov to Cooper City (Florida) | 5,015.41 mi (8,071.53 km) |
| Duchcov to Coos Bay (Oregon) | 5,469.47 mi (8,802.26 km) |
| Duchcov to Copiague (New York) | 4,017.96 mi (6,466.28 km) |
| Duchcov to Coppell (Texas) | 5,291.80 mi (8,516.34 km) |
| Duchcov to Copperas Cove (Texas) | 5,425.97 mi (8,732.26 km) |
| Duchcov to Coral Gables (Florida) | 5,032.53 mi (8,099.07 km) |
| Duchcov to Coral Springs (Florida) | 5,002.73 mi (8,051.11 km) |
| Duchcov to Coral Terrace (Florida) | 5,031.70 mi (8,097.73 km) |
| Duchcov to Coralville (Iowa) | 4,638.09 mi (7,464.28 km) |
| Duchcov to Coram (New York) | 3,993.19 mi (6,426.42 km) |
| Duchcov to Corcoran (California) | 5,808.62 mi (9,348.08 km) |
| Duchcov to Cordele (Georgia) | 4,851.04 mi (7,806.99 km) |
