| Idar-Oberstein to Rapperswil-Jona | 185.61 mi (298.72 km) |
| Idar-Oberstein to Regensdorf | 166.00 mi (267.15 km) |
| Idar-Oberstein to Reinach | 154.44 mi (248.55 km) |
| Idar-Oberstein to Renens | 222.15 mi (357.51 km) |
| Idar-Oberstein to Rheinfelden | 150.98 mi (242.98 km) |
| Idar-Oberstein to Richterswil | 183.70 mi (295.63 km) |
| Idar-Oberstein to Riehen | 147.76 mi (237.80 km) |
| Idar-Oberstein to Risch | 184.84 mi (297.47 km) |
| Idar-Oberstein to Romanshorn | 175.28 mi (282.08 km) |
| Idar-Oberstein to Rorschach | 184.49 mi (296.91 km) |
| Idar-Oberstein to Rothrist | 168.45 mi (271.10 km) |
| Idar-Oberstein to Ruti | 182.98 mi (294.47 km) |
| Idar-Oberstein to Sankt Gallen | 183.90 mi (295.96 km) |
| Idar-Oberstein to Sarnen | 199.18 mi (320.55 km) |
| Idar-Oberstein to Schaffhausen | 151.44 mi (243.73 km) |
