| Mechernich to Idar-Oberstein | 68.05 mi (109.52 km) |
| Mechernich to Idstein | 76.17 mi (122.58 km) |
| Mechernich to Illertissen | 225.65 mi (363.15 km) |
| Mechernich to Illingen | 86.41 mi (139.07 km) |
| Mechernich to Ilmenau | 187.13 mi (301.16 km) |
| Mechernich to Ilsede | 190.82 mi (307.09 km) |
| Mechernich to Ilsenburg | 195.17 mi (314.10 km) |
| Mechernich to Ilsfeld | 157.78 mi (253.92 km) |
| Mechernich to Ilvesheim | 115.36 mi (185.66 km) |
| Mechernich to Immenstadt im Allgau | 264.46 mi (425.61 km) |
| Mechernich to Ingelheim | 75.64 mi (121.73 km) |
| Mechernich to Ingolstadt | 248.28 mi (399.57 km) |
| Mechernich to Iserlohn | 69.88 mi (112.47 km) |
| Mechernich to Isernhagen-Sud | 187.25 mi (301.35 km) |
| Mechernich to Ismaning | 278.95 mi (448.93 km) |
