| Boulder City to Rodgau | 5,587.01 mi (8,991.43 km) |
| Boulder City to Roding | 5,737.37 mi (9,233.40 km) |
| Boulder City to Rodinghausen | 5,462.50 mi (8,791.05 km) |
| Boulder City to Roetgen | 5,473.36 mi (8,808.51 km) |
| Boulder City to Rommerskirchen | 5,469.60 mi (8,802.47 km) |
| Boulder City to Ronnenberg | 5,493.19 mi (8,840.44 km) |
| Boulder City to Rosbach vor der Hohe | 5,567.26 mi (8,959.64 km) |
| Boulder City to Rosdorf | 5,541.91 mi (8,918.85 km) |
| Boulder City to Rosenheim | 5,796.90 mi (9,329.21 km) |
| Boulder City to Rosrath | 5,491.24 mi (8,837.29 km) |
| Boulder City to Rossdorf | 5,591.13 mi (8,998.06 km) |
| Boulder City to Rosstal | 5,678.66 mi (9,138.92 km) |
| Boulder City to Rostock | 5,471.18 mi (8,805.01 km) |
| Boulder City to Rotenburg an der Fulda | 5,562.55 mi (8,952.05 km) |
| Boulder City to Roth | 5,692.83 mi (9,161.72 km) |
