| Idar-Oberstein to Siegburg | 75.46 mi (121.45 km) |
| Idar-Oberstein to Siegen | 86.72 mi (139.56 km) |
| Idar-Oberstein to Sigmaringen | 141.68 mi (228.01 km) |
| Idar-Oberstein to Simbach am Inn | 277.11 mi (445.96 km) |
| Idar-Oberstein to Simmerath | 76.04 mi (122.37 km) |
| Idar-Oberstein to Sindelfingen | 102.82 mi (165.47 km) |
| Idar-Oberstein to Sinsheim | 77.36 mi (124.50 km) |
| Idar-Oberstein to Sinzheim | 76.07 mi (122.43 km) |
| Idar-Oberstein to Sinzig | 57.68 mi (92.83 km) |
| Idar-Oberstein to Soest | 133.14 mi (214.27 km) |
| Idar-Oberstein to Solingen | 101.06 mi (162.64 km) |
| Idar-Oberstein to Soltau | 250.83 mi (403.67 km) |
| Idar-Oberstein to Sommerda | 195.06 mi (313.92 km) |
| Idar-Oberstein to Sondershausen | 193.44 mi (311.30 km) |
| Idar-Oberstein to Sonneberg | 176.61 mi (284.23 km) |
