| Round Rock to Reichenbach/Vogtland | 5,397.06 mi (8,685.74 km) |
| Round Rock to Reinbek | 5,214.80 mi (8,392.41 km) |
| Round Rock to Reinfeld | 5,211.00 mi (8,386.29 km) |
| Round Rock to Reinheim | 5,298.26 mi (8,526.72 km) |
| Round Rock to Reiskirchen | 5,270.17 mi (8,481.52 km) |
| Round Rock to Rellingen | 5,194.62 mi (8,359.93 km) |
| Round Rock to Remagen | 5,210.81 mi (8,385.99 km) |
| Round Rock to Remscheid | 5,188.40 mi (8,349.93 km) |
| Round Rock to Rendsburg | 5,165.85 mi (8,313.63 km) |
| Round Rock to Renningen | 5,341.13 mi (8,595.73 km) |
| Round Rock to Reutlingen | 5,362.47 mi (8,630.05 km) |
| Round Rock to Rhaude | 5,131.85 mi (8,258.92 km) |
| Round Rock to Rheda-Wiedenbruck | 5,205.72 mi (8,377.80 km) |
| Round Rock to Rhede | 5,147.22 mi (8,283.65 km) |
| Round Rock to Rheinau | 5,306.01 mi (8,539.20 km) |
