| Groningen to Reichenbach/Vogtland | 303.12 mi (487.82 km) |
| Groningen to Reinbek | 153.12 mi (246.42 km) |
| Groningen to Reinfeld | 166.39 mi (267.78 km) |
| Groningen to Reinheim | 253.60 mi (408.13 km) |
| Groningen to Reiskirchen | 204.97 mi (329.86 km) |
| Groningen to Rellingen | 137.07 mi (220.60 km) |
| Groningen to Remagen | 184.46 mi (296.86 km) |
| Groningen to Remscheid | 143.03 mi (230.18 km) |
| Groningen to Rendsburg | 147.07 mi (236.69 km) |
| Groningen to Renningen | 324.25 mi (521.82 km) |
| Groningen to Reutlingen | 346.81 mi (558.14 km) |
| Groningen to Rhaude | 40.85 mi (65.74 km) |
| Groningen to Rheda-Wiedenbruck | 119.72 mi (192.66 km) |
| Groningen to Rhede | 95.75 mi (154.09 km) |
| Groningen to Rheinau | 319.88 mi (514.79 km) |
