| Castellabate to Idar-Oberstein | 750.14 mi (1,207.24 km) |
| Castellabate to Idstein | 759.11 mi (1,221.66 km) |
| Castellabate to Illertissen | 598.75 mi (963.60 km) |
| Castellabate to Illingen | 737.30 mi (1,186.58 km) |
| Castellabate to Ilmenau | 744.70 mi (1,198.48 km) |
| Castellabate to Ilsede | 858.55 mi (1,381.70 km) |
| Castellabate to Ilsenburg | 826.01 mi (1,329.33 km) |
| Castellabate to Ilsfeld | 667.21 mi (1,073.77 km) |
| Castellabate to Ilvesheim | 707.36 mi (1,138.38 km) |
| Castellabate to Immenstadt im Allgau | 555.70 mi (894.32 km) |
| Castellabate to Ingelheim | 748.77 mi (1,205.02 km) |
| Castellabate to Ingolstadt | 611.24 mi (983.70 km) |
| Castellabate to Iserlohn | 842.61 mi (1,356.06 km) |
| Castellabate to Isernhagen-Sud | 873.74 mi (1,406.14 km) |
| Castellabate to Ismaning | 572.47 mi (921.30 km) |
