| Duchcov to Kenosha (Wisconsin) | 4,464.06 mi (7,184.22 km) |
| Duchcov to Kent (Ohio) | 4,299.53 mi (6,919.42 km) |
| Duchcov to Kent (Washington) | 5,177.75 mi (8,332.79 km) |
| Duchcov to Kentwood (Michigan) | 4,368.66 mi (7,030.68 km) |
| Duchcov to Kerman (California) | 5,782.27 mi (9,305.66 km) |
| Duchcov to Kernersville (North Carolina) | 4,497.56 mi (7,238.12 km) |
| Duchcov to Kerrville (Texas) | 5,529.07 mi (8,898.18 km) |
| Duchcov to Kettering (Maryland) | 4,233.98 mi (6,813.93 km) |
| Duchcov to Kettering (Ohio) | 4,474.12 mi (7,200.40 km) |
| Duchcov to Kewanee (Illinois) | 4,603.92 mi (7,409.29 km) |
| Duchcov to Key Biscayne (Florida) | 5,028.81 mi (8,093.09 km) |
| Duchcov to Key Largo (Florida) | 5,068.44 mi (8,156.87 km) |
| Duchcov to Key West (Florida) | 5,153.82 mi (8,294.27 km) |
| Duchcov to Keystone (Florida) | 5,001.86 mi (8,049.71 km) |
| Duchcov to Kihei (Hawaii) | 7,469.48 mi (12,020.96 km) |
