| Rocky River to Ratingen | 4,019.01 mi (6,467.97 km) |
| Rocky River to Ratzeburg | 4,083.29 mi (6,571.42 km) |
| Rocky River to Raubling | 4,345.06 mi (6,992.71 km) |
| Rocky River to Rauenberg | 4,158.97 mi (6,693.22 km) |
| Rocky River to Raunheim | 4,123.25 mi (6,635.74 km) |
| Rocky River to Ravensburg | 4,247.30 mi (6,835.36 km) |
| Rocky River to Recke | 4,016.88 mi (6,464.55 km) |
| Rocky River to Recklinghausen | 4,021.55 mi (6,472.06 km) |
| Rocky River to Regen | 4,340.44 mi (6,985.27 km) |
| Rocky River to Regensburg | 4,298.49 mi (6,917.76 km) |
| Rocky River to Regenstauf | 4,296.27 mi (6,914.17 km) |
| Rocky River to Rehau | 4,250.77 mi (6,840.95 km) |
| Rocky River to Rehburg-Loccum | 4,069.35 mi (6,548.99 km) |
| Rocky River to Rehlingen-Siersburg | 4,076.29 mi (6,560.16 km) |
| Rocky River to Reichelsheim | 4,148.70 mi (6,676.69 km) |
