| Castle Rock to Ross on Wye | 4,597.80 mi (7,399.45 km) |
| Castle Rock to Rossington | 4,588.70 mi (7,384.81 km) |
| Castle Rock to Rosyth | 4,411.97 mi (7,100.38 km) |
| Castle Rock to Rotherham | 4,580.54 mi (7,371.67 km) |
| Castle Rock to Rothwell | 4,563.93 mi (7,344.93 km) |
| Castle Rock to Rottingdean | 4,730.46 mi (7,612.93 km) |
| Castle Rock to Rowley Regis | 4,593.96 mi (7,393.27 km) |
| Castle Rock to Royal Leamington Spa | 4,619.45 mi (7,434.29 km) |
| Castle Rock to Royal Tunbridge Wells | 4,728.86 mi (7,610.36 km) |
| Castle Rock to Royal Wootton Bassett | 4,636.98 mi (7,462.49 km) |
| Castle Rock to Royston | 4,570.31 mi (7,355.21 km) |
| Castle Rock to Royston | 4,681.55 mi (7,534.23 km) |
| Castle Rock to Royton | 4,549.35 mi (7,321.47 km) |
| Castle Rock to Rugby | 4,625.91 mi (7,444.68 km) |
| Castle Rock to Rugeley | 4,587.10 mi (7,382.23 km) |
