| Upper Grand Lagoon to Idar-Oberstein | 4,787.79 mi (7,705.21 km) |
| Upper Grand Lagoon to Idstein | 4,813.47 mi (7,746.53 km) |
| Upper Grand Lagoon to Illertissen | 4,944.43 mi (7,957.30 km) |
| Upper Grand Lagoon to Illingen | 4,785.91 mi (7,702.18 km) |
| Upper Grand Lagoon to Ilmenau | 4,906.85 mi (7,896.81 km) |
| Upper Grand Lagoon to Ilsede | 4,833.05 mi (7,778.05 km) |
| Upper Grand Lagoon to Ilsenburg | 4,863.69 mi (7,827.35 km) |
| Upper Grand Lagoon to Ilsfeld | 4,885.90 mi (7,863.09 km) |
| Upper Grand Lagoon to Ilvesheim | 4,845.95 mi (7,798.80 km) |
| Upper Grand Lagoon to Immenstadt im Allgau | 4,969.08 mi (7,996.96 km) |
| Upper Grand Lagoon to Ingelheim | 4,811.25 mi (7,742.96 km) |
| Upper Grand Lagoon to Ingolstadt | 4,983.83 mi (8,020.70 km) |
| Upper Grand Lagoon to Iserlohn | 4,757.99 mi (7,657.25 km) |
| Upper Grand Lagoon to Isernhagen-Sud | 4,815.81 mi (7,750.30 km) |
| Upper Grand Lagoon to Ismaning | 5,010.19 mi (8,063.12 km) |
