| Idar-Oberstein to Settimo Torinese | 317.02 mi (510.20 km) |
| Idar-Oberstein to Seveso | 293.58 mi (472.47 km) |
| Idar-Oberstein to Sezze | 631.39 mi (1,016.13 km) |
| Idar-Oberstein to Siano | 711.78 mi (1,145.50 km) |
| Idar-Oberstein to Siena | 481.09 mi (774.24 km) |
| Idar-Oberstein to Signa | 446.96 mi (719.32 km) |
| Idar-Oberstein to Silea | 363.56 mi (585.10 km) |
| Idar-Oberstein to Silvi Paese | 591.87 mi (952.52 km) |
| Idar-Oberstein to Sinalunga | 495.38 mi (797.24 km) |
| Idar-Oberstein to Siniscola | 641.82 mi (1,032.90 km) |
| Idar-Oberstein to Sinnai | 725.12 mi (1,166.97 km) |
| Idar-Oberstein to Siracusa | 959.57 mi (1,544.28 km) |
| Idar-Oberstein to Solaro | 294.76 mi (474.37 km) |
| Idar-Oberstein to Soliera | 383.02 mi (616.41 km) |
| Idar-Oberstein to Solofra | 713.72 mi (1,148.62 km) |
