| Castaic to Rodgau | 5,777.09 mi (9,297.32 km) |
| Castaic to Roding | 5,924.58 mi (9,534.69 km) |
| Castaic to Rodinghausen | 5,649.53 mi (9,092.04 km) |
| Castaic to Roetgen | 5,665.27 mi (9,117.37 km) |
| Castaic to Rommerskirchen | 5,660.42 mi (9,109.56 km) |
| Castaic to Ronnenberg | 5,678.86 mi (9,139.25 km) |
| Castaic to Rosbach vor der Hohe | 5,757.11 mi (9,265.17 km) |
| Castaic to Rosdorf | 5,728.60 mi (9,219.29 km) |
| Castaic to Rosenheim | 5,986.53 mi (9,634.39 km) |
| Castaic to Rosrath | 5,681.76 mi (9,143.91 km) |
| Castaic to Rossdorf | 5,781.59 mi (9,304.56 km) |
| Castaic to Rosstal | 5,867.45 mi (9,442.76 km) |
| Castaic to Rostock | 5,651.27 mi (9,094.84 km) |
| Castaic to Rotenburg an der Fulda | 5,750.21 mi (9,254.06 km) |
| Castaic to Roth | 5,881.61 mi (9,465.54 km) |
