| Duchcov to Rockville (Maryland) | 4,238.93 mi (6,821.90 km) |
| Duchcov to Rockville Centre (New York) | 4,027.87 mi (6,482.24 km) |
| Duchcov to Rockwall (Texas) | 5,274.76 mi (8,488.91 km) |
| Duchcov to Rocky Mount (North Carolina) | 4,414.86 mi (7,105.03 km) |
| Duchcov to Rocky Point (New York) | 3,987.98 mi (6,418.03 km) |
| Duchcov to Rocky River (Ohio) | 4,302.20 mi (6,923.73 km) |
| Duchcov to Roessleville (New York) | 3,941.17 mi (6,342.71 km) |
| Duchcov to Rogers (Arkansas) | 5,010.11 mi (8,062.99 km) |
| Duchcov to Rogers (Minnesota) | 4,524.25 mi (7,281.08 km) |
| Duchcov to Rohnert Park (California) | 5,747.21 mi (9,249.24 km) |
| Duchcov to Rolla (Missouri) | 4,839.22 mi (7,787.98 km) |
| Duchcov to Rolling Meadows (Illinois) | 4,494.96 mi (7,233.94 km) |
| Duchcov to Roma (Texas) | 5,726.36 mi (9,215.68 km) |
| Duchcov to Rome (Georgia) | 4,787.39 mi (7,704.55 km) |
| Duchcov to Rome (New York) | 3,981.71 mi (6,407.94 km) |
