| Round Rock to Rende | 6,010.15 mi (9,672.41 km) |
| Round Rock to Resana | 5,578.54 mi (8,977.80 km) |
| Round Rock to Rescaldina | 5,458.63 mi (8,784.82 km) |
| Round Rock to Rezzato | 5,517.82 mi (8,880.07 km) |
| Round Rock to Rho | 5,465.14 mi (8,795.29 km) |
| Round Rock to Ribera | 5,960.52 mi (9,592.53 km) |
| Round Rock to Riccione Marina | 5,671.41 mi (9,127.26 km) |
| Round Rock to Riesi | 6,005.51 mi (9,664.93 km) |
| Round Rock to Rieti | 5,743.92 mi (9,243.94 km) |
| Round Rock to Rignano Flaminio | 5,736.60 mi (9,232.17 km) |
| Round Rock to Rignano sull'Arno | 5,633.41 mi (9,066.10 km) |
| Round Rock to Rimini | 5,665.73 mi (9,118.11 km) |
| Round Rock to Rionero in Vulture | 5,921.64 mi (9,529.95 km) |
| Round Rock to Riposto | 6,035.60 mi (9,713.36 km) |
| Round Rock to Riva del Garda | 5,525.01 mi (8,891.65 km) |
