| Rockville to Reichenbach/Vogtland | 4,182.21 mi (6,730.62 km) |
| Rockville to Reinbek | 4,017.47 mi (6,465.50 km) |
| Rockville to Reinfeld | 4,017.11 mi (6,464.92 km) |
| Rockville to Reinheim | 4,068.46 mi (6,547.56 km) |
| Rockville to Reiskirchen | 4,045.96 mi (6,511.34 km) |
| Rockville to Rellingen | 3,997.34 mi (6,433.09 km) |
| Rockville to Remagen | 3,982.51 mi (6,409.24 km) |
| Rockville to Remscheid | 3,964.51 mi (6,380.27 km) |
| Rockville to Rendsburg | 3,973.85 mi (6,395.29 km) |
| Rockville to Renningen | 4,104.32 mi (6,605.26 km) |
| Rockville to Reutlingen | 4,124.47 mi (6,637.69 km) |
| Rockville to Rhaude | 3,924.59 mi (6,316.02 km) |
| Rockville to Rheda-Wiedenbruck | 3,989.60 mi (6,420.65 km) |
| Rockville to Rhede | 3,927.12 mi (6,320.09 km) |
| Rockville to Rheinau | 4,066.15 mi (6,543.83 km) |
