| Round Rock to Pyrzyce | 5,388.08 mi (8,671.28 km) |
| Round Rock to Pyskowice | 5,630.00 mi (9,060.61 km) |
| Round Rock to Raciborz | 5,629.66 mi (9,060.06 km) |
| Round Rock to Radom | 5,670.57 mi (9,125.91 km) |
| Round Rock to Radomsko | 5,628.71 mi (9,058.53 km) |
| Round Rock to Radzionkow Nowy | 5,639.16 mi (9,075.36 km) |
| Round Rock to Radzymin | 5,626.15 mi (9,054.41 km) |
| Round Rock to Radzyn Podlaski | 5,701.06 mi (9,174.97 km) |
| Round Rock to Rawa Mazowiecka | 5,624.78 mi (9,052.21 km) |
| Round Rock to Rawicz | 5,517.60 mi (8,879.72 km) |
| Round Rock to Reda | 5,440.00 mi (8,754.83 km) |
| Round Rock to Rogozno | 5,474.77 mi (8,810.79 km) |
| Round Rock to Ropczyce | 5,746.71 mi (9,248.43 km) |
| Round Rock to Ruda Slaska | 5,643.36 mi (9,082.12 km) |
| Round Rock to Rumia | 5,443.70 mi (8,760.79 km) |
