| Mountain Ash to Rhosllanerchrugog | 92.90 mi (149.51 km) |
| Mountain Ash to Rhyl | 113.36 mi (182.44 km) |
| Mountain Ash to Rhymney | 6.76 mi (10.88 km) |
| Mountain Ash to Richmond | 133.10 mi (214.21 km) |
| Mountain Ash to Rickmansworth | 124.89 mi (201.00 km) |
| Mountain Ash to Ripley | 125.95 mi (202.69 km) |
| Mountain Ash to Ripon | 186.49 mi (300.13 km) |
| Mountain Ash to Risca | 13.36 mi (21.50 km) |
| Mountain Ash to Rochdale | 142.93 mi (230.02 km) |
| Mountain Ash to Rochester | 168.07 mi (270.47 km) |
| Mountain Ash to Rock Ferry | 117.91 mi (189.77 km) |
| Mountain Ash to Rogerstone | 15.30 mi (24.63 km) |
| Mountain Ash to Romford | 152.81 mi (245.93 km) |
| Mountain Ash to Romsey | 94.30 mi (151.76 km) |
| Mountain Ash to Ross on Wye | 37.47 mi (60.30 km) |
