| Round Rock to Idar-Oberstein | 5,244.62 mi (8,440.40 km) |
| Round Rock to Idstein | 5,262.95 mi (8,469.89 km) |
| Round Rock to Illertissen | 5,405.90 mi (8,699.95 km) |
| Round Rock to Illingen | 5,246.46 mi (8,443.37 km) |
| Round Rock to Ilmenau | 5,344.16 mi (8,600.60 km) |
| Round Rock to Ilsede | 5,258.32 mi (8,462.44 km) |
| Round Rock to Ilsenburg | 5,291.09 mi (8,515.19 km) |
| Round Rock to Ilsfeld | 5,342.76 mi (8,598.35 km) |
| Round Rock to Ilvesheim | 5,301.18 mi (8,531.43 km) |
| Round Rock to Immenstadt im Allgau | 5,435.64 mi (8,747.82 km) |
| Round Rock to Ingelheim | 5,263.56 mi (8,470.88 km) |
| Round Rock to Ingolstadt | 5,436.32 mi (8,748.91 km) |
| Round Rock to Iserlohn | 5,198.71 mi (8,366.52 km) |
| Round Rock to Isernhagen-Sud | 5,240.50 mi (8,433.77 km) |
| Round Rock to Ismaning | 5,466.45 mi (8,797.41 km) |
