| Donegal to Rheinbach | 688.00 mi (1,107.24 km) |
| Donegal to Rheinberg | 645.47 mi (1,038.78 km) |
| Donegal to Rheine | 658.41 mi (1,059.61 km) |
| Donegal to Rheinfelden (Baden) | 843.08 mi (1,356.80 km) |
| Donegal to Ribnitz-Damgarten | 824.07 mi (1,326.22 km) |
| Donegal to Richterich | 648.27 mi (1,043.29 km) |
| Donegal to Riedlingen | 877.31 mi (1,411.90 km) |
| Donegal to Riegelsberg | 737.63 mi (1,187.11 km) |
| Donegal to Rielasingen-Worblingen | 872.43 mi (1,404.04 km) |
| Donegal to Riesa | 915.94 mi (1,474.06 km) |
| Donegal to Rietberg | 710.22 mi (1,142.98 km) |
| Donegal to Rinteln | 726.00 mi (1,168.38 km) |
| Donegal to Ritterhude | 692.08 mi (1,113.80 km) |
| Donegal to Rodenbach | 784.24 mi (1,262.11 km) |
| Donegal to Rodental | 858.47 mi (1,381.58 km) |
