| Park Ridge to Ratingen | 4,216.89 mi (6,786.43 km) |
| Park Ridge to Ratzeburg | 4,264.91 mi (6,863.72 km) |
| Park Ridge to Raubling | 4,548.26 mi (7,319.72 km) |
| Park Ridge to Rauenberg | 4,362.21 mi (7,020.31 km) |
| Park Ridge to Raunheim | 4,323.92 mi (6,958.67 km) |
| Park Ridge to Ravensburg | 4,454.79 mi (7,169.28 km) |
| Park Ridge to Recke | 4,208.91 mi (6,773.58 km) |
| Park Ridge to Recklinghausen | 4,217.76 mi (6,787.84 km) |
| Park Ridge to Regen | 4,537.38 mi (7,302.20 km) |
| Park Ridge to Regensburg | 4,497.06 mi (7,237.32 km) |
| Park Ridge to Regenstauf | 4,494.34 mi (7,232.94 km) |
| Park Ridge to Rehau | 4,444.63 mi (7,152.93 km) |
| Park Ridge to Rehburg-Loccum | 4,258.74 mi (6,853.78 km) |
| Park Ridge to Rehlingen-Siersburg | 4,282.37 mi (6,891.80 km) |
| Park Ridge to Reichelsheim | 4,349.95 mi (7,000.56 km) |
