| Duchcov to Cicero (Illinois) | 4,497.17 mi (7,237.50 km) |
| Duchcov to Cimarron Hills (Colorado) | 5,220.37 mi (8,401.38 km) |
| Duchcov to Cincinnati (Ohio) | 4,514.92 mi (7,266.06 km) |
| Duchcov to Cinco Ranch (Texas) | 5,424.01 mi (8,729.10 km) |
| Duchcov to Circleville (Ohio) | 4,433.41 mi (7,134.88 km) |
| Duchcov to Citrus (California) | 5,884.19 mi (9,469.69 km) |
| Duchcov to Citrus Heights (California) | 5,691.77 mi (9,160.02 km) |
| Duchcov to Citrus Park (Florida) | 5,003.37 mi (8,052.15 km) |
| Duchcov to Claiborne (Louisiana) | 5,141.61 mi (8,274.62 km) |
| Duchcov to Claremont (California) | 5,878.85 mi (9,461.09 km) |
| Duchcov to Claremont (New Hampshire) | 3,854.51 mi (6,203.24 km) |
| Duchcov to Claremore (Oklahoma) | 5,061.26 mi (8,145.31 km) |
| Duchcov to Clarksburg (Maryland) | 4,236.48 mi (6,817.96 km) |
| Duchcov to Clarksburg (West Virginia) | 4,350.81 mi (7,001.95 km) |
| Duchcov to Clarksdale (Mississippi) | 4,993.57 mi (8,036.38 km) |
