| Calumet City to Idar-Oberstein | 4,301.19 mi (6,922.10 km) |
| Calumet City to Idstein | 4,318.00 mi (6,949.14 km) |
| Calumet City to Illertissen | 4,463.04 mi (7,182.57 km) |
| Calumet City to Illingen | 4,303.85 mi (6,926.38 km) |
| Calumet City to Ilmenau | 4,397.06 mi (7,076.39 km) |
| Calumet City to Ilsede | 4,309.87 mi (6,936.06 km) |
| Calumet City to Ilsenburg | 4,342.83 mi (6,989.11 km) |
| Calumet City to Ilsfeld | 4,399.08 mi (7,079.64 km) |
| Calumet City to Ilvesheim | 4,357.27 mi (7,012.35 km) |
| Calumet City to Immenstadt im Allgau | 4,493.89 mi (7,232.21 km) |
| Calumet City to Ingelheim | 4,319.15 mi (6,951.01 km) |
| Calumet City to Ingolstadt | 4,491.53 mi (7,228.43 km) |
| Calumet City to Iserlohn | 4,252.39 mi (6,843.56 km) |
| Calumet City to Isernhagen-Sud | 4,292.02 mi (6,907.34 km) |
| Calumet City to Ismaning | 4,522.34 mi (7,278.00 km) |
