| Dumbarton to Ratingen | 566.42 mi (911.56 km) |
| Dumbarton to Ratzeburg | 627.71 mi (1,010.21 km) |
| Dumbarton to Raubling | 903.69 mi (1,454.35 km) |
| Dumbarton to Rauenberg | 721.21 mi (1,160.67 km) |
| Dumbarton to Raunheim | 677.34 mi (1,090.08 km) |
| Dumbarton to Ravensburg | 824.34 mi (1,326.64 km) |
| Dumbarton to Recke | 554.12 mi (891.77 km) |
| Dumbarton to Recklinghausen | 564.91 mi (909.14 km) |
| Dumbarton to Regen | 883.83 mi (1,422.39 km) |
| Dumbarton to Regensburg | 845.27 mi (1,360.34 km) |
| Dumbarton to Regenstauf | 842.02 mi (1,355.09 km) |
| Dumbarton to Rehau | 789.82 mi (1,271.09 km) |
| Dumbarton to Rehburg-Loccum | 605.60 mi (974.62 km) |
| Dumbarton to Rehlingen-Siersburg | 653.40 mi (1,051.54 km) |
| Dumbarton to Reichelsheim | 704.22 mi (1,133.34 km) |
