| Boulder City to Ratingen | 5,461.38 mi (8,789.24 km) |
| Boulder City to Ratzeburg | 5,453.51 mi (8,776.58 km) |
| Boulder City to Raubling | 5,799.28 mi (9,333.04 km) |
| Boulder City to Rauenberg | 5,619.34 mi (9,043.46 km) |
| Boulder City to Raunheim | 5,573.85 mi (8,970.25 km) |
| Boulder City to Ravensburg | 5,722.92 mi (9,210.14 km) |
| Boulder City to Recke | 5,434.45 mi (8,745.91 km) |
| Boulder City to Recklinghausen | 5,456.75 mi (8,781.79 km) |
| Boulder City to Regen | 5,767.69 mi (9,282.20 km) |
| Boulder City to Regensburg | 5,734.24 mi (9,228.37 km) |
| Boulder City to Regenstauf | 5,729.97 mi (9,221.50 km) |
| Boulder City to Rehau | 5,667.77 mi (9,121.40 km) |
| Boulder City to Rehburg-Loccum | 5,473.69 mi (8,809.05 km) |
| Boulder City to Rehlingen-Siersburg | 5,551.24 mi (8,933.85 km) |
| Boulder City to Reichelsheim | 5,600.93 mi (9,013.83 km) |
