| Bolu to Idar-Oberstein | 1,326.78 mi (2,135.25 km) |
| Bolu to Idstein | 1,298.63 mi (2,089.95 km) |
| Bolu to Illertissen | 1,174.98 mi (1,890.94 km) |
| Bolu to Illingen | 1,330.76 mi (2,141.65 km) |
| Bolu to Ilmenau | 1,205.36 mi (1,939.84 km) |
| Bolu to Ilsede | 1,285.11 mi (2,068.18 km) |
| Bolu to Ilsenburg | 1,252.97 mi (2,016.46 km) |
| Bolu to Ilsfeld | 1,229.52 mi (1,978.73 km) |
| Bolu to Ilvesheim | 1,268.29 mi (2,041.12 km) |
| Bolu to Immenstadt im Allgau | 1,155.82 mi (1,860.11 km) |
| Bolu to Ingelheim | 1,301.61 mi (2,094.75 km) |
| Bolu to Ingolstadt | 1,130.10 mi (1,818.72 km) |
| Bolu to Iserlohn | 1,353.82 mi (2,178.76 km) |
| Bolu to Isernhagen-Sud | 1,302.80 mi (2,096.66 km) |
| Bolu to Ismaning | 1,106.14 mi (1,780.17 km) |
