| Boulder City to Rothenbach an der Pegnitz | 5,685.11 mi (9,149.29 km) |
| Boulder City to Rothenburg ob der Tauber | 5,658.53 mi (9,106.53 km) |
| Boulder City to Rottweil | 5,672.43 mi (9,128.89 km) |
| Boulder City to Rudersberg | 5,664.07 mi (9,115.43 km) |
| Boulder City to Rudesheim am Rhein | 5,559.65 mi (8,947.39 km) |
| Boulder City to Rudolstadt | 5,623.54 mi (9,050.22 km) |
| Boulder City to Runkel | 5,545.39 mi (8,924.44 km) |
| Boulder City to Ruppichteroth | 5,503.20 mi (8,856.54 km) |
| Boulder City to Russelsheim | 5,573.78 mi (8,970.13 km) |
| Boulder City to Rutesheim | 5,649.96 mi (9,092.73 km) |
| Boulder City to Ruthen | 5,500.71 mi (8,852.54 km) |
| Boulder City to Saalfeld | 5,628.15 mi (9,057.63 km) |
| Boulder City to Saarbrucken | 5,568.04 mi (8,960.90 km) |
| Boulder City to Saarlouis | 5,556.05 mi (8,941.59 km) |
| Boulder City to Saarwellingen | 5,555.93 mi (8,941.40 km) |
