| Gaithersburg to Rothenbach an der Pegnitz | 4,175.91 mi (6,720.48 km) |
| Gaithersburg to Rothenburg ob der Tauber | 4,136.32 mi (6,656.77 km) |
| Gaithersburg to Rottweil | 4,109.77 mi (6,614.04 km) |
| Gaithersburg to Rudersberg | 4,125.01 mi (6,638.56 km) |
| Gaithersburg to Rudesheim am Rhein | 4,027.59 mi (6,481.78 km) |
| Gaithersburg to Rudolstadt | 4,140.88 mi (6,664.11 km) |
| Gaithersburg to Runkel | 4,024.45 mi (6,476.72 km) |
| Gaithersburg to Ruppichteroth | 3,985.30 mi (6,413.71 km) |
| Gaithersburg to Russelsheim | 4,046.65 mi (6,512.46 km) |
| Gaithersburg to Rutesheim | 4,103.51 mi (6,603.95 km) |
| Gaithersburg to Ruthen | 4,006.41 mi (6,447.70 km) |
| Gaithersburg to Saalfeld | 4,144.48 mi (6,669.89 km) |
| Gaithersburg to Saarbrucken | 4,011.32 mi (6,455.59 km) |
| Gaithersburg to Saarlouis | 3,998.67 mi (6,435.24 km) |
| Gaithersburg to Saarwellingen | 3,999.86 mi (6,437.15 km) |
