| Idstein to Romeoville (Illinois) | 4,337.43 mi (6,980.42 km) |
| Idstein to Romulus (Michigan) | 4,132.33 mi (6,650.34 km) |
| Idstein to Ronkonkoma (New York) | 3,795.02 mi (6,107.49 km) |
| Idstein to Roosevelt (New York) | 3,819.02 mi (6,146.11 km) |
| Idstein to Rosamond (California) | 5,713.75 mi (9,195.39 km) |
| Idstein to Rosaryville (Maryland) | 4,035.84 mi (6,495.05 km) |
| Idstein to Roscoe (Illinois) | 4,332.40 mi (6,972.32 km) |
| Idstein to Rose Hill (Virginia) | 4,046.28 mi (6,511.85 km) |
| Idstein to Roseburg (Oregon) | 5,354.08 mi (8,616.56 km) |
| Idstein to Rosedale (California) | 5,711.63 mi (9,191.97 km) |
| Idstein to Rosedale (Maryland) | 3,997.48 mi (6,433.32 km) |
| Idstein to Roselle (Illinois) | 4,320.09 mi (6,952.51 km) |
| Idstein to Roselle (New Jersey) | 3,847.47 mi (6,191.91 km) |
| Idstein to Roselle Park (New Jersey) | 3,847.19 mi (6,191.45 km) |
| Idstein to Rosemead (California) | 5,756.89 mi (9,264.81 km) |
