| Castle Rock to Rodgau | 5,069.47 mi (8,158.53 km) |
| Castle Rock to Roding | 5,226.13 mi (8,410.64 km) |
| Castle Rock to Rodinghausen | 4,953.03 mi (7,971.14 km) |
| Castle Rock to Roetgen | 4,951.83 mi (7,969.20 km) |
| Castle Rock to Rommerskirchen | 4,950.78 mi (7,967.51 km) |
| Castle Rock to Ronnenberg | 4,986.93 mi (8,025.69 km) |
| Castle Rock to Rosbach vor der Hohe | 5,050.38 mi (8,127.81 km) |
| Castle Rock to Rosdorf | 5,032.89 mi (8,099.65 km) |
| Castle Rock to Rosenheim | 5,279.51 mi (8,496.55 km) |
| Castle Rock to Rosrath | 4,973.05 mi (8,003.35 km) |
| Castle Rock to Rossdorf | 5,072.65 mi (8,163.65 km) |
| Castle Rock to Rosstal | 5,163.83 mi (8,310.39 km) |
| Castle Rock to Rostock | 4,978.85 mi (8,012.69 km) |
| Castle Rock to Rotenburg an der Fulda | 5,051.04 mi (8,128.86 km) |
| Castle Rock to Roth | 5,177.95 mi (8,333.10 km) |
