| Dumbarton to Rheinbach | 599.71 mi (965.14 km) |
| Dumbarton to Rheinberg | 547.39 mi (880.94 km) |
| Dumbarton to Rheine | 547.04 mi (880.37 km) |
| Dumbarton to Rheinfelden (Baden) | 782.15 mi (1,258.75 km) |
| Dumbarton to Ribnitz-Damgarten | 681.70 mi (1,097.09 km) |
| Dumbarton to Richterich | 562.96 mi (906.00 km) |
| Dumbarton to Riedlingen | 800.94 mi (1,288.99 km) |
| Dumbarton to Riegelsberg | 665.00 mi (1,070.21 km) |
| Dumbarton to Rielasingen-Worblingen | 803.44 mi (1,293.01 km) |
| Dumbarton to Riesa | 796.04 mi (1,281.10 km) |
| Dumbarton to Rietberg | 600.86 mi (966.99 km) |
| Dumbarton to Rinteln | 609.89 mi (981.53 km) |
| Dumbarton to Ritterhude | 565.78 mi (910.53 km) |
| Dumbarton to Rodenbach | 690.64 mi (1,111.47 km) |
| Dumbarton to Rodental | 754.82 mi (1,214.77 km) |
