| Castrop-Rauxel to Rheinberg | 30.77 mi (49.52 km) |
| Castrop-Rauxel to Rheine | 50.91 mi (81.93 km) |
| Castrop-Rauxel to Rheinfelden (Baden) | 276.43 mi (444.86 km) |
| Castrop-Rauxel to Ribnitz-Damgarten | 284.25 mi (457.46 km) |
| Castrop-Rauxel to Richterich | 74.66 mi (120.16 km) |
| Castrop-Rauxel to Riedlingen | 253.43 mi (407.85 km) |
| Castrop-Rauxel to Riegelsberg | 156.75 mi (252.27 km) |
| Castrop-Rauxel to Rielasingen-Worblingen | 272.26 mi (438.17 km) |
| Castrop-Rauxel to Riesa | 257.96 mi (415.14 km) |
| Castrop-Rauxel to Rietberg | 50.86 mi (81.86 km) |
| Castrop-Rauxel to Rinteln | 87.33 mi (140.54 km) |
| Castrop-Rauxel to Ritterhude | 128.35 mi (206.56 km) |
| Castrop-Rauxel to Rodenbach | 122.32 mi (196.86 km) |
| Castrop-Rauxel to Rodental | 185.29 mi (298.19 km) |
| Castrop-Rauxel to Rodgau | 126.12 mi (202.96 km) |
