| Idar-Oberstein to Reinbek | 290.98 mi (468.29 km) |
| Idar-Oberstein to Reinfeld | 315.33 mi (507.47 km) |
| Idar-Oberstein to Reinheim | 68.20 mi (109.75 km) |
| Idar-Oberstein to Reiskirchen | 91.09 mi (146.60 km) |
| Idar-Oberstein to Rellingen | 292.46 mi (470.67 km) |
| Idar-Oberstein to Remagen | 60.03 mi (96.61 km) |
| Idar-Oberstein to Remscheid | 101.82 mi (163.86 km) |
| Idar-Oberstein to Rendsburg | 332.42 mi (534.98 km) |
| Idar-Oberstein to Renningen | 98.06 mi (157.82 km) |
| Idar-Oberstein to Reutlingen | 120.89 mi (194.56 km) |
| Idar-Oberstein to Rhaude | 238.96 mi (384.56 km) |
| Idar-Oberstein to Rheda-Wiedenbruck | 153.37 mi (246.83 km) |
| Idar-Oberstein to Rhede | 149.03 mi (239.84 km) |
| Idar-Oberstein to Rheinau | 77.38 mi (124.52 km) |
| Idar-Oberstein to Rheinbach | 65.69 mi (105.72 km) |
