| Piqua to Idar-Oberstein | 4,243.56 mi (6,829.35 km) |
| Piqua to Idstein | 4,263.24 mi (6,861.02 km) |
| Piqua to Illertissen | 4,404.30 mi (7,088.04 km) |
| Piqua to Illingen | 4,244.80 mi (6,831.35 km) |
| Piqua to Ilmenau | 4,347.19 mi (6,996.12 km) |
| Piqua to Ilsede | 4,264.17 mi (6,862.52 km) |
| Piqua to Ilsenburg | 4,296.45 mi (6,914.48 km) |
| Piqua to Ilsfeld | 4,341.84 mi (6,987.51 km) |
| Piqua to Ilvesheim | 4,300.48 mi (6,920.95 km) |
| Piqua to Immenstadt im Allgau | 4,433.33 mi (7,134.76 km) |
| Piqua to Ingelheim | 4,263.32 mi (6,861.15 km) |
| Piqua to Ingolstadt | 4,436.32 mi (7,139.56 km) |
| Piqua to Iserlohn | 4,200.69 mi (6,760.36 km) |
| Piqua to Isernhagen-Sud | 4,246.47 mi (6,834.03 km) |
| Piqua to Ismaning | 4,465.81 mi (7,187.03 km) |
