| Wattwil to Idar-Oberstein | 185.52 mi (298.57 km) |
| Wattwil to Idstein | 205.42 mi (330.59 km) |
| Wattwil to Illertissen | 78.79 mi (126.80 km) |
| Wattwil to Illingen | 171.35 mi (275.76 km) |
| Wattwil to Ilmenau | 248.45 mi (399.84 km) |
| Wattwil to Ilsede | 346.94 mi (558.35 km) |
| Wattwil to Ilsenburg | 323.84 mi (521.17 km) |
| Wattwil to Ilsfeld | 121.45 mi (195.46 km) |
| Wattwil to Ilvesheim | 152.25 mi (245.02 km) |
| Wattwil to Immenstadt im Allgau | 56.20 mi (90.44 km) |
| Wattwil to Ingelheim | 190.94 mi (307.29 km) |
| Wattwil to Ingolstadt | 148.28 mi (238.63 km) |
| Wattwil to Iserlohn | 289.52 mi (465.93 km) |
| Wattwil to Isernhagen-Sud | 356.70 mi (574.05 km) |
| Wattwil to Ismaning | 136.37 mi (219.47 km) |
