| Ilmenau to Red Bank (New Jersey) | 3,945.63 mi (6,349.88 km) |
| Ilmenau to Red Bank (Tennessee) | 4,637.24 mi (7,462.92 km) |
| Ilmenau to Red Bluff (California) | 5,550.46 mi (8,932.59 km) |
| Ilmenau to Red Hill (South Carolina) | 4,455.37 mi (7,170.22 km) |
| Ilmenau to Red Oak (Texas) | 5,203.99 mi (8,375.02 km) |
| Ilmenau to Red Wing (Minnesota) | 4,425.69 mi (7,122.45 km) |
| Ilmenau to Redan (Georgia) | 4,662.37 mi (7,503.36 km) |
| Ilmenau to Redding (California) | 5,529.32 mi (8,898.57 km) |
| Ilmenau to Redland (Maryland) | 4,123.29 mi (6,635.79 km) |
| Ilmenau to Redlands (California) | 5,784.65 mi (9,309.49 km) |
| Ilmenau to Redmond (Oregon) | 5,276.27 mi (8,491.33 km) |
| Ilmenau to Redmond (Washington) | 5,091.37 mi (8,193.77 km) |
| Ilmenau to Redondo Beach (California) | 5,830.59 mi (9,383.43 km) |
| Ilmenau to Redwood City (California) | 5,713.20 mi (9,194.51 km) |
| Ilmenau to Reedley (California) | 5,695.07 mi (9,165.33 km) |
