| Grez-Doiceau to Idstein | 161.08 mi (259.24 km) |
| Grez-Doiceau to Illertissen | 297.61 mi (478.96 km) |
| Grez-Doiceau to Illingen | 140.28 mi (225.75 km) |
| Grez-Doiceau to Ilmenau | 272.07 mi (437.85 km) |
| Grez-Doiceau to Ilsede | 258.46 mi (415.96 km) |
| Grez-Doiceau to Ilsenburg | 269.99 mi (434.51 km) |
| Grez-Doiceau to Ilsfeld | 233.49 mi (375.77 km) |
| Grez-Doiceau to Ilvesheim | 192.23 mi (309.37 km) |
| Grez-Doiceau to Immenstadt im Allgau | 331.54 mi (533.57 km) |
| Grez-Doiceau to Ingelheim | 156.96 mi (252.60 km) |
| Grez-Doiceau to Ingolstadt | 329.49 mi (530.27 km) |
| Grez-Doiceau to Iserlohn | 136.43 mi (219.56 km) |
| Grez-Doiceau to Isernhagen-Sud | 250.59 mi (403.28 km) |
| Grez-Doiceau to Ismaning | 357.52 mi (575.38 km) |
| Grez-Doiceau to Isny im Allgau | 319.60 mi (514.35 km) |
