| Mercer Island to Idar-Oberstein | 5,073.49 mi (8,165.00 km) |
| Mercer Island to Idstein | 5,066.89 mi (8,154.38 km) |
| Mercer Island to Illertissen | 5,227.59 mi (8,412.99 km) |
| Mercer Island to Illingen | 5,086.57 mi (8,186.04 km) |
| Mercer Island to Ilmenau | 5,100.63 mi (8,208.66 km) |
| Mercer Island to Ilsede | 4,990.67 mi (8,031.70 km) |
| Mercer Island to Ilsenburg | 5,025.32 mi (8,087.47 km) |
| Mercer Island to Ilsfeld | 5,158.62 mi (8,302.00 km) |
| Mercer Island to Ilvesheim | 5,117.59 mi (8,235.96 km) |
| Mercer Island to Immenstadt im Allgau | 5,269.29 mi (8,480.10 km) |
| Mercer Island to Ingelheim | 5,076.06 mi (8,169.13 km) |
| Mercer Island to Ingolstadt | 5,226.40 mi (8,411.08 km) |
| Mercer Island to Iserlohn | 4,984.95 mi (8,022.50 km) |
| Mercer Island to Isernhagen-Sud | 4,973.59 mi (8,004.22 km) |
| Mercer Island to Ismaning | 5,264.16 mi (8,471.84 km) |
