| Caerfyrddin to Rheinbach | 494.03 mi (795.06 km) |
| Caerfyrddin to Rheinberg | 467.51 mi (752.39 km) |
| Caerfyrddin to Rheine | 499.34 mi (803.60 km) |
| Caerfyrddin to Rheinfelden (Baden) | 615.94 mi (991.26 km) |
| Caerfyrddin to Ribnitz-Damgarten | 714.49 mi (1,149.85 km) |
| Caerfyrddin to Richterich | 453.44 mi (729.74 km) |
| Caerfyrddin to Riedlingen | 662.24 mi (1,065.78 km) |
| Caerfyrddin to Riegelsberg | 523.90 mi (843.13 km) |
| Caerfyrddin to Rielasingen-Worblingen | 650.95 mi (1,047.60 km) |
| Caerfyrddin to Riesa | 755.17 mi (1,215.32 km) |
| Caerfyrddin to Rietberg | 543.73 mi (875.05 km) |
| Caerfyrddin to Rinteln | 569.26 mi (916.14 km) |
| Caerfyrddin to Ritterhude | 556.46 mi (895.54 km) |
| Caerfyrddin to Rodenbach | 591.37 mi (951.71 km) |
| Caerfyrddin to Rodental | 675.33 mi (1,086.84 km) |
