| Mountain Ash to Ratingen | 440.49 mi (708.90 km) |
| Mountain Ash to Ratzeburg | 606.82 mi (976.58 km) |
| Mountain Ash to Raubling | 740.16 mi (1,191.17 km) |
| Mountain Ash to Rauenberg | 556.10 mi (894.96 km) |
| Mountain Ash to Raunheim | 528.05 mi (849.82 km) |
| Mountain Ash to Ravensburg | 638.44 mi (1,027.47 km) |
| Mountain Ash to Recke | 473.74 mi (762.41 km) |
| Mountain Ash to Recklinghausen | 451.72 mi (726.97 km) |
| Mountain Ash to Regen | 750.36 mi (1,207.59 km) |
| Mountain Ash to Regensburg | 704.65 mi (1,134.02 km) |
| Mountain Ash to Regenstauf | 703.94 mi (1,132.88 km) |
| Mountain Ash to Rehau | 675.90 mi (1,087.75 km) |
| Mountain Ash to Rehburg-Loccum | 536.58 mi (863.55 km) |
| Mountain Ash to Rehlingen-Siersburg | 469.33 mi (755.32 km) |
| Mountain Ash to Reichelsheim | 551.01 mi (886.76 km) |
