| Rockville to Redondela | 3,498.44 mi (5,630.19 km) |
| Rockville to Reinosa | 3,691.73 mi (5,941.26 km) |
| Rockville to Requena | 3,935.27 mi (6,333.21 km) |
| Rockville to Reus | 3,989.38 mi (6,420.29 km) |
| Rockville to Rianxo | 3,479.96 mi (5,600.45 km) |
| Rockville to Ribadeo | 3,542.42 mi (5,700.98 km) |
| Rockville to Rincon de la Victoria | 3,864.55 mi (6,219.40 km) |
| Rockville to Ripoll | 4,007.93 mi (6,450.13 km) |
| Rockville to Ripollet | 4,027.81 mi (6,482.14 km) |
| Rockville to Rojales | 3,996.57 mi (6,431.85 km) |
| Rockville to Ronda | 3,820.16 mi (6,147.95 km) |
| Rockville to Roquetas de Mar | 3,945.60 mi (6,349.84 km) |
| Rockville to Rosas | 4,051.26 mi (6,519.88 km) |
| Rockville to Rubi | 4,022.13 mi (6,472.99 km) |
| Rockville to Rute | 3,842.10 mi (6,183.27 km) |
