| Round Rock to Redondela | 4,792.98 mi (7,713.55 km) |
| Round Rock to Reinosa | 4,980.28 mi (8,014.98 km) |
| Round Rock to Requena | 5,230.28 mi (8,417.32 km) |
| Round Rock to Reus | 5,277.85 mi (8,493.88 km) |
| Round Rock to Rianxo | 4,773.73 mi (7,682.57 km) |
| Round Rock to Ribadeo | 4,832.14 mi (7,776.58 km) |
| Round Rock to Rincon de la Victoria | 5,165.02 mi (8,312.30 km) |
| Round Rock to Ripoll | 5,291.55 mi (8,515.92 km) |
| Round Rock to Ripollet | 5,313.89 mi (8,551.89 km) |
| Round Rock to Rojales | 5,293.90 mi (8,519.71 km) |
| Round Rock to Ronda | 5,120.80 mi (8,241.13 km) |
| Round Rock to Roquetas de Mar | 5,245.55 mi (8,441.90 km) |
| Round Rock to Rosas | 5,333.26 mi (8,583.05 km) |
| Round Rock to Rubi | 5,308.38 mi (8,543.01 km) |
| Round Rock to Rute | 5,142.18 mi (8,275.54 km) |
