| Leonberg to Idar-Oberstein | 99.14 mi (159.56 km) |
| Leonberg to Idstein | 103.51 mi (166.58 km) |
| Leonberg to Illertissen | 63.50 mi (102.19 km) |
| Leonberg to Illingen | 97.20 mi (156.43 km) |
| Leonberg to Ilmenau | 155.43 mi (250.14 km) |
| Leonberg to Ilsede | 244.87 mi (394.09 km) |
| Leonberg to Ilsenburg | 224.22 mi (360.85 km) |
| Leonberg to Ilsfeld | 20.27 mi (32.61 km) |
| Leonberg to Ilvesheim | 50.55 mi (81.36 km) |
| Leonberg to Immenstadt im Allgau | 101.74 mi (163.74 km) |
| Leonberg to Ingelheim | 91.78 mi (147.70 km) |
| Leonberg to Ingolstadt | 109.83 mi (176.76 km) |
| Leonberg to Iserlohn | 188.10 mi (302.72 km) |
| Leonberg to Isernhagen-Sud | 253.71 mi (408.31 km) |
| Leonberg to Ismaning | 128.03 mi (206.05 km) |
