| Round Rock to Ruislip | 4,884.72 mi (7,861.20 km) |
| Round Rock to Runcorn | 4,746.60 mi (7,638.91 km) |
| Round Rock to Rushall | 4,796.26 mi (7,718.83 km) |
| Round Rock to Rushden | 4,857.48 mi (7,817.36 km) |
| Round Rock to Rustington | 4,904.43 mi (7,892.92 km) |
| Round Rock to Rutherglen | 4,627.52 mi (7,447.28 km) |
| Round Rock to Ryde | 4,880.89 mi (7,855.03 km) |
| Round Rock to Rye | 4,948.76 mi (7,964.26 km) |
| Round Rock to Ryhope | 4,756.00 mi (7,654.04 km) |
| Round Rock to Saffron Walden | 4,897.68 mi (7,882.05 km) |
| Round Rock to Saint Albans | 4,883.23 mi (7,858.81 km) |
| Round Rock to Saint Andrews | 4,665.59 mi (7,508.55 km) |
| Round Rock to Saint Austell | 4,745.77 mi (7,637.58 km) |
| Round Rock to Saint Budeaux | 4,768.64 mi (7,674.39 km) |
| Round Rock to Saint Helens | 4,743.07 mi (7,633.24 km) |
