| Porvoo to Idstein | 974.91 mi (1,568.97 km) |
| Porvoo to Illertissen | 1,044.38 mi (1,680.77 km) |
| Porvoo to Illingen | 1,054.29 mi (1,696.72 km) |
| Porvoo to Ilmenau | 880.53 mi (1,417.08 km) |
| Porvoo to Ilsede | 812.98 mi (1,308.37 km) |
| Porvoo to Ilsenburg | 820.92 mi (1,321.14 km) |
| Porvoo to Ilsfeld | 1,015.69 mi (1,634.59 km) |
| Porvoo to Ilvesheim | 1,008.89 mi (1,623.66 km) |
| Porvoo to Immenstadt im Allgau | 1,080.23 mi (1,738.47 km) |
| Porvoo to Ingelheim | 994.29 mi (1,600.15 km) |
| Porvoo to Ingolstadt | 980.87 mi (1,578.57 km) |
| Porvoo to Iserlohn | 929.32 mi (1,495.60 km) |
| Porvoo to Isernhagen-Sud | 813.21 mi (1,308.74 km) |
| Porvoo to Ismaning | 1,007.81 mi (1,621.92 km) |
| Porvoo to Isny im Allgau | 1,076.76 mi (1,732.88 km) |
