| Ferentino to Idar-Oberstein | 623.83 mi (1,003.96 km) |
| Ferentino to Idstein | 636.10 mi (1,023.70 km) |
| Ferentino to Illertissen | 477.12 mi (767.85 km) |
| Ferentino to Illingen | 609.85 mi (981.46 km) |
| Ferentino to Ilmenau | 631.71 mi (1,016.64 km) |
| Ferentino to Ilsede | 745.22 mi (1,199.31 km) |
| Ferentino to Ilsenburg | 713.89 mi (1,148.89 km) |
| Ferentino to Ilsfeld | 544.57 mi (876.40 km) |
| Ferentino to Ilvesheim | 583.59 mi (939.20 km) |
| Ferentino to Immenstadt im Allgau | 432.91 mi (696.71 km) |
| Ferentino to Ingelheim | 624.69 mi (1,005.34 km) |
| Ferentino to Ingolstadt | 497.12 mi (800.04 km) |
| Ferentino to Iserlohn | 720.31 mi (1,159.22 km) |
| Ferentino to Isernhagen-Sud | 759.57 mi (1,222.40 km) |
| Ferentino to Ismaning | 458.59 mi (738.03 km) |
