| Round Rock to Rheinbach | 5,198.29 mi (8,365.85 km) |
| Round Rock to Rheinberg | 5,153.42 mi (8,293.62 km) |
| Round Rock to Rheine | 5,158.48 mi (8,301.77 km) |
| Round Rock to Rheinfelden (Baden) | 5,340.47 mi (8,594.65 km) |
| Round Rock to Ribnitz-Damgarten | 5,262.90 mi (8,469.82 km) |
| Round Rock to Richterich | 5,158.64 mi (8,302.03 km) |
| Round Rock to Riedlingen | 5,384.58 mi (8,665.64 km) |
| Round Rock to Riegelsberg | 5,244.92 mi (8,440.89 km) |
| Round Rock to Rielasingen-Worblingen | 5,375.50 mi (8,651.03 km) |
| Round Rock to Riesa | 5,405.70 mi (8,699.63 km) |
| Round Rock to Rietberg | 5,212.08 mi (8,388.04 km) |
| Round Rock to Rinteln | 5,221.55 mi (8,403.27 km) |
| Round Rock to Ritterhude | 5,174.17 mi (8,327.03 km) |
| Round Rock to Rodenbach | 5,294.07 mi (8,519.99 km) |
| Round Rock to Rodental | 5,364.77 mi (8,633.76 km) |
