| Giessen to Idstein | 30.44 mi (48.99 km) |
| Giessen to Illertissen | 175.48 mi (282.40 km) |
| Giessen to Illingen | 109.98 mi (177.00 km) |
| Giessen to Ilmenau | 98.96 mi (159.27 km) |
| Giessen to Ilsede | 133.40 mi (214.69 km) |
| Giessen to Ilsenburg | 124.40 mi (200.20 km) |
| Giessen to Ilsfeld | 109.08 mi (175.55 km) |
| Giessen to Ilvesheim | 76.88 mi (123.72 km) |
| Giessen to Immenstadt im Allgau | 219.90 mi (353.90 km) |
| Giessen to Ingelheim | 49.94 mi (80.38 km) |
| Giessen to Ingolstadt | 176.12 mi (283.44 km) |
| Giessen to Iserlohn | 70.34 mi (113.19 km) |
| Giessen to Isernhagen-Sud | 137.75 mi (221.68 km) |
| Giessen to Ismaning | 211.58 mi (340.51 km) |
| Giessen to Isny im Allgau | 209.18 mi (336.64 km) |
