| Duchcov to Clarkston (Georgia) | 4,774.28 mi (7,683.46 km) |
| Duchcov to Clarksville (Indiana) | 4,602.75 mi (7,407.41 km) |
| Duchcov to Clarksville (Tennessee) | 4,750.38 mi (7,645.00 km) |
| Duchcov to Clawson (Michigan) | 4,298.04 mi (6,917.03 km) |
| Duchcov to Clay (Alabama) | 4,871.12 mi (7,839.31 km) |
| Duchcov to Clayton (California) | 5,753.98 mi (9,260.13 km) |
| Duchcov to Clayton (Missouri) | 4,751.93 mi (7,647.50 km) |
| Duchcov to Clayton (North Carolina) | 4,455.53 mi (7,170.48 km) |
| Duchcov to Clayton (Ohio) | 4,472.15 mi (7,197.22 km) |
| Duchcov to Clearfield (Utah) | 5,305.83 mi (8,538.91 km) |
| Duchcov to Clearlake (California) | 5,707.81 mi (9,185.83 km) |
| Duchcov to Clearwater (Florida) | 5,016.29 mi (8,072.94 km) |
| Duchcov to Cleburne (Texas) | 5,340.13 mi (8,594.10 km) |
| Duchcov to Clemmons (North Carolina) | 4,513.01 mi (7,262.99 km) |
| Duchcov to Clemson (South Carolina) | 4,674.72 mi (7,523.24 km) |
