| Ilmenau to Rockville (Maryland) | 4,126.01 mi (6,640.17 km) |
| Ilmenau to Rockville Centre (New York) | 3,914.28 mi (6,299.43 km) |
| Ilmenau to Rockwall (Texas) | 5,169.96 mi (8,320.25 km) |
| Ilmenau to Rocky Mount (North Carolina) | 4,300.10 mi (6,920.35 km) |
| Ilmenau to Rocky Point (New York) | 3,874.24 mi (6,234.98 km) |
| Ilmenau to Rocky River (Ohio) | 4,193.96 mi (6,749.52 km) |
| Ilmenau to Roessleville (New York) | 3,829.32 mi (6,162.69 km) |
| Ilmenau to Rogers (Arkansas) | 4,906.14 mi (7,895.66 km) |
| Ilmenau to Rogers (Minnesota) | 4,427.80 mi (7,125.86 km) |
| Ilmenau to Rohnert Park (California) | 5,673.41 mi (9,130.47 km) |
| Ilmenau to Rolla (Missouri) | 4,734.76 mi (7,619.87 km) |
| Ilmenau to Rolling Meadows (Illinois) | 4,391.36 mi (7,067.21 km) |
| Ilmenau to Roma (Texas) | 5,619.07 mi (9,043.02 km) |
| Ilmenau to Rome (Georgia) | 4,675.69 mi (7,524.79 km) |
| Ilmenau to Rome (New York) | 3,871.24 mi (6,230.16 km) |
