| Castle Rock to Ruislip | 4,686.49 mi (7,542.17 km) |
| Castle Rock to Runcorn | 4,537.17 mi (7,301.87 km) |
| Castle Rock to Rushall | 4,592.34 mi (7,390.65 km) |
| Castle Rock to Rushden | 4,651.85 mi (7,486.43 km) |
| Castle Rock to Rustington | 4,715.18 mi (7,588.36 km) |
| Castle Rock to Rutherglen | 4,393.95 mi (7,071.38 km) |
| Castle Rock to Ryde | 4,695.37 mi (7,556.47 km) |
| Castle Rock to Rye | 4,752.64 mi (7,648.63 km) |
| Castle Rock to Ryhope | 4,523.76 mi (7,280.29 km) |
| Castle Rock to Saffron Walden | 4,691.60 mi (7,550.40 km) |
| Castle Rock to Saint Albans | 4,682.57 mi (7,535.87 km) |
| Castle Rock to Saint Andrews | 4,421.20 mi (7,115.23 km) |
| Castle Rock to Saint Austell | 4,579.84 mi (7,370.53 km) |
| Castle Rock to Saint Budeaux | 4,599.49 mi (7,402.17 km) |
| Castle Rock to Saint Helens | 4,532.44 mi (7,294.26 km) |
