| Round Rock to Quarteira | 4,964.63 mi (7,989.79 km) |
| Round Rock to Queluz | 4,858.81 mi (7,819.50 km) |
| Round Rock to Reguengos de Monsaraz | 4,953.61 mi (7,972.07 km) |
| Round Rock to Resende | 4,856.20 mi (7,815.30 km) |
| Round Rock to Ribeira Brava | 4,621.55 mi (7,437.66 km) |
| Round Rock to Ribeira Grande | 4,053.31 mi (6,523.17 km) |
| Round Rock to Rio de Mouro | 4,855.05 mi (7,813.45 km) |
| Round Rock to Rio Maior | 4,858.89 mi (7,819.63 km) |
| Round Rock to Rio Tinto | 4,825.80 mi (7,766.37 km) |
| Round Rock to Sabugal | 4,919.65 mi (7,917.42 km) |
| Round Rock to Sacavem | 4,865.54 mi (7,830.33 km) |
| Round Rock to Salvaterra de Magos | 4,875.11 mi (7,845.73 km) |
| Round Rock to Santa Comba Dao | 4,868.63 mi (7,835.30 km) |
| Round Rock to Santa Cruz | 4,634.97 mi (7,459.27 km) |
| Round Rock to Santa Iria da Azoia | 4,864.93 mi (7,829.34 km) |
