| San Felice Circeo to Idar-Oberstein | 648.73 mi (1,044.03 km) |
| San Felice Circeo to Idstein | 662.59 mi (1,066.33 km) |
| San Felice Circeo to Illertissen | 504.42 mi (811.78 km) |
| San Felice Circeo to Illingen | 634.04 mi (1,020.39 km) |
| San Felice Circeo to Ilmenau | 661.07 mi (1,063.89 km) |
| San Felice Circeo to Ilsede | 774.40 mi (1,246.27 km) |
| San Felice Circeo to Ilsenburg | 743.34 mi (1,196.28 km) |
| San Felice Circeo to Ilsfeld | 571.35 mi (919.49 km) |
| San Felice Circeo to Ilvesheim | 609.84 mi (981.44 km) |
| San Felice Circeo to Immenstadt im Allgau | 459.87 mi (740.10 km) |
| San Felice Circeo to Ingelheim | 650.73 mi (1,047.25 km) |
| San Felice Circeo to Ingolstadt | 526.45 mi (847.24 km) |
| San Felice Circeo to Iserlohn | 746.98 mi (1,202.15 km) |
| San Felice Circeo to Isernhagen-Sud | 788.55 mi (1,269.05 km) |
| San Felice Circeo to Ismaning | 488.04 mi (785.42 km) |
