| Wetzlar to Idar-Oberstein | 79.09 mi (127.28 km) |
| Wetzlar to Idstein | 25.90 mi (41.68 km) |
| Wetzlar to Illertissen | 177.28 mi (285.31 km) |
| Wetzlar to Illingen | 104.41 mi (168.02 km) |
| Wetzlar to Ilmenau | 106.35 mi (171.16 km) |
| Wetzlar to Ilsede | 138.04 mi (222.15 km) |
| Wetzlar to Ilsenburg | 130.36 mi (209.79 km) |
| Wetzlar to Ilsfeld | 110.00 mi (177.03 km) |
| Wetzlar to Ilvesheim | 75.66 mi (121.77 km) |
| Wetzlar to Immenstadt im Allgau | 221.35 mi (356.23 km) |
| Wetzlar to Ingelheim | 45.35 mi (72.99 km) |
| Wetzlar to Ingolstadt | 180.64 mi (290.71 km) |
| Wetzlar to Iserlohn | 67.06 mi (107.93 km) |
| Wetzlar to Isernhagen-Sud | 141.62 mi (227.91 km) |
| Wetzlar to Ismaning | 215.59 mi (346.96 km) |
