| Grefrath to Idstein | 114.35 mi (184.03 km) |
| Grefrath to Illertissen | 272.58 mi (438.68 km) |
| Grefrath to Illingen | 139.00 mi (223.70 km) |
| Grefrath to Ilmenau | 204.05 mi (328.38 km) |
| Grefrath to Ilsede | 176.29 mi (283.70 km) |
| Grefrath to Ilsenburg | 189.90 mi (305.61 km) |
| Grefrath to Ilsfeld | 203.72 mi (327.85 km) |
| Grefrath to Ilvesheim | 161.84 mi (260.46 km) |
| Grefrath to Immenstadt im Allgau | 313.18 mi (504.02 km) |
| Grefrath to Ingelheim | 120.40 mi (193.77 km) |
| Grefrath to Ingolstadt | 287.10 mi (462.04 km) |
| Grefrath to Iserlohn | 57.30 mi (92.21 km) |
| Grefrath to Isernhagen-Sud | 168.03 mi (270.42 km) |
| Grefrath to Ismaning | 320.40 mi (515.63 km) |
| Grefrath to Isny im Allgau | 301.46 mi (485.16 km) |
