| Idil to Rhosllanerchrugog | 2,391.24 mi (3,848.34 km) |
| Idil to Rhyl | 2,411.97 mi (3,881.69 km) |
| Idil to Rhymney | 2,389.53 mi (3,845.58 km) |
| Idil to Richmond | 2,259.93 mi (3,637.01 km) |
| Idil to Rickmansworth | 2,268.87 mi (3,651.40 km) |
| Idil to Ripley | 2,324.24 mi (3,740.51 km) |
| Idil to Ripon | 2,343.18 mi (3,770.99 km) |
| Idil to Risca | 2,380.17 mi (3,830.52 km) |
| Idil to Rochdale | 2,361.77 mi (3,800.90 km) |
| Idil to Rochester | 2,224.97 mi (3,580.74 km) |
| Idil to Rock Ferry | 2,393.29 mi (3,851.62 km) |
| Idil to Rogerstone | 2,378.45 mi (3,827.74 km) |
| Idil to Romford | 2,240.83 mi (3,606.27 km) |
| Idil to Romsey | 2,306.74 mi (3,712.34 km) |
| Idil to Ross on Wye | 2,361.34 mi (3,800.20 km) |
