| Rio Maior to Idar-Oberstein | 1,070.39 mi (1,722.63 km) |
| Rio Maior to Idstein | 1,125.60 mi (1,811.48 km) |
| Rio Maior to Illertissen | 1,125.20 mi (1,810.84 km) |
| Rio Maior to Illingen | 1,047.40 mi (1,685.63 km) |
| Rio Maior to Ilmenau | 1,240.35 mi (1,996.16 km) |
| Rio Maior to Ilsede | 1,275.68 mi (2,053.01 km) |
| Rio Maior to Ilsenburg | 1,276.66 mi (2,054.59 km) |
| Rio Maior to Ilsfeld | 1,118.66 mi (1,800.31 km) |
| Rio Maior to Ilvesheim | 1,107.55 mi (1,782.43 km) |
| Rio Maior to Immenstadt im Allgau | 1,111.91 mi (1,789.45 km) |
| Rio Maior to Ingelheim | 1,107.92 mi (1,783.02 km) |
| Rio Maior to Ingolstadt | 1,196.93 mi (1,926.27 km) |
| Rio Maior to Iserlohn | 1,153.52 mi (1,856.41 km) |
| Rio Maior to Isernhagen-Sud | 1,271.78 mi (2,046.73 km) |
| Rio Maior to Ismaning | 1,191.95 mi (1,918.26 km) |
