| Cities | Distance |
|---|---|
| Langen to Idar-Oberstein | 63.16 mi (101.65 km) |
| Langen to Idstein | 23.90 mi (38.47 km) |
| Langen to Illertissen | 137.85 mi (221.85 km) |
| Langen to Illingen | 83.46 mi (134.32 km) |
| Langen to Ilmenau | 110.51 mi (177.85 km) |
| Langen to Ilsede | 170.92 mi (275.06 km) |
| Langen to Ilsenburg | 156.98 mi (252.64 km) |
| Langen to Ilsfeld | 69.59 mi (111.99 km) |
| Langen to Ilvesheim | 35.57 mi (57.24 km) |
| Langen to Immenstadt im Allgau | 181.26 mi (291.72 km) |
| Langen to Ingelheim | 27.12 mi (43.65 km) |
| Langen to Ingolstadt | 150.01 mi (241.41 km) |
| Langen to Iserlohn | 106.17 mi (170.87 km) |
| Langen to Isernhagen-Sud | 177.00 mi (284.86 km) |
| Langen to Ismaning | 182.24 mi (293.29 km) |