| Bad Harzburg to Idstein | 151.77 mi (244.25 km) |
| Bad Harzburg to Illertissen | 254.07 mi (408.89 km) |
| Bad Harzburg to Illingen | 231.49 mi (372.54 km) |
| Bad Harzburg to Ilmenau | 84.15 mi (135.42 km) |
| Bad Harzburg to Ilsede | 31.12 mi (50.09 km) |
| Bad Harzburg to Ilsenburg | 5.26 mi (8.47 km) |
| Bad Harzburg to Ilsfeld | 203.94 mi (328.20 km) |
| Bad Harzburg to Ilvesheim | 187.93 mi (302.44 km) |
| Bad Harzburg to Immenstadt im Allgau | 298.49 mi (480.38 km) |
| Bad Harzburg to Ingelheim | 171.03 mi (275.25 km) |
| Bad Harzburg to Ingolstadt | 218.76 mi (352.07 km) |
| Bad Harzburg to Iserlohn | 128.84 mi (207.35 km) |
| Bad Harzburg to Isernhagen-Sud | 48.51 mi (78.07 km) |
| Bad Harzburg to Ismaning | 257.27 mi (414.03 km) |
| Bad Harzburg to Isny im Allgau | 290.38 mi (467.32 km) |
