| Round Lake to Idar-Oberstein | 4,287.40 mi (6,899.91 km) |
| Round Lake to Idstein | 4,303.36 mi (6,925.60 km) |
| Round Lake to Illertissen | 4,449.49 mi (7,160.76 km) |
| Round Lake to Illingen | 4,290.48 mi (6,904.86 km) |
| Round Lake to Ilmenau | 4,380.97 mi (7,050.50 km) |
| Round Lake to Ilsede | 4,292.64 mi (6,908.34 km) |
| Round Lake to Ilsenburg | 4,325.78 mi (6,961.67 km) |
| Round Lake to Ilsfeld | 4,385.13 mi (7,057.18 km) |
| Round Lake to Ilvesheim | 4,343.21 mi (6,989.72 km) |
| Round Lake to Immenstadt im Allgau | 4,480.86 mi (7,211.24 km) |
| Round Lake to Ingelheim | 4,304.83 mi (6,927.96 km) |
| Round Lake to Ingolstadt | 4,476.94 mi (7,204.94 km) |
| Round Lake to Iserlohn | 4,236.91 mi (6,818.65 km) |
| Round Lake to Isernhagen-Sud | 4,274.76 mi (6,879.56 km) |
| Round Lake to Ismaning | 4,508.11 mi (7,255.10 km) |
