| Castrop-Rauxel to Redon | 499.21 mi (803.41 km) |
| Castrop-Rauxel to Reims | 214.11 mi (344.58 km) |
| Castrop-Rauxel to Rennes | 465.44 mi (749.06 km) |
| Castrop-Rauxel to Revel | 611.18 mi (983.60 km) |
| Castrop-Rauxel to Reze | 499.94 mi (804.57 km) |
| Castrop-Rauxel to Riedisheim | 262.68 mi (422.75 km) |
| Castrop-Rauxel to Rillieux-la-Pape | 410.83 mi (661.17 km) |
| Castrop-Rauxel to Riom | 435.10 mi (700.22 km) |
| Castrop-Rauxel to Riorges | 408.58 mi (657.54 km) |
| Castrop-Rauxel to Ris-Orangis | 295.20 mi (475.09 km) |
| Castrop-Rauxel to Rive-de-Gier | 433.85 mi (698.22 km) |
| Castrop-Rauxel to Rivesaltes | 641.31 mi (1,032.08 km) |
| Castrop-Rauxel to Rixheim | 262.68 mi (422.74 km) |
| Castrop-Rauxel to Roanne | 408.51 mi (657.43 km) |
| Castrop-Rauxel to Roche-la-Moliere | 444.15 mi (714.79 km) |
