| Grefrath to Ratzeburg | 246.98 mi (397.47 km) |
| Grefrath to Raubling | 355.93 mi (572.81 km) |
| Grefrath to Rauenberg | 176.90 mi (284.69 km) |
| Grefrath to Raunheim | 129.76 mi (208.84 km) |
| Grefrath to Ravensburg | 285.86 mi (460.05 km) |
| Grefrath to Recke | 92.52 mi (148.89 km) |
| Grefrath to Recklinghausen | 39.30 mi (63.25 km) |
| Grefrath to Regen | 342.21 mi (550.73 km) |
| Grefrath to Regensburg | 300.29 mi (483.27 km) |
| Grefrath to Regenstauf | 297.88 mi (479.39 km) |
| Grefrath to Rehau | 258.93 mi (416.71 km) |
| Grefrath to Rehburg-Loccum | 144.46 mi (232.49 km) |
| Grefrath to Rehlingen-Siersburg | 136.77 mi (220.11 km) |
| Grefrath to Reichelsheim | 156.82 mi (252.37 km) |
| Grefrath to Reichenbach/Vogtland | 263.89 mi (424.70 km) |
