| Portchester to Idar-Oberstein | 380.25 mi (611.96 km) |
| Portchester to Idstein | 414.53 mi (667.13 km) |
| Portchester to Illertissen | 533.51 mi (858.60 km) |
| Portchester to Illingen | 375.80 mi (604.79 km) |
| Portchester to Ilmenau | 525.70 mi (846.03 km) |
| Portchester to Ilsede | 494.93 mi (796.51 km) |
| Portchester to Ilsenburg | 513.61 mi (826.58 km) |
| Portchester to Ilsfeld | 476.96 mi (767.59 km) |
| Portchester to Ilvesheim | 438.80 mi (706.19 km) |
| Portchester to Immenstadt im Allgau | 558.82 mi (899.33 km) |
| Portchester to Ingelheim | 408.22 mi (656.96 km) |
| Portchester to Ingolstadt | 576.80 mi (928.26 km) |
| Portchester to Iserlohn | 382.73 mi (615.95 km) |
| Portchester to Isernhagen-Sud | 482.88 mi (777.12 km) |
| Portchester to Ismaning | 600.52 mi (966.45 km) |
