| Bydgoszcz to Isny im Allgau | 512.87 mi (825.39 km) |
| Bydgoszcz to Isselburg | 492.90 mi (793.24 km) |
| Bydgoszcz to Issum | 500.29 mi (805.15 km) |
| Bydgoszcz to Itzehoe | 352.65 mi (567.53 km) |
| Bydgoszcz to Jena | 311.86 mi (501.89 km) |
| Bydgoszcz to Jever | 417.38 mi (671.70 km) |
| Bydgoszcz to Jork | 344.25 mi (554.01 km) |
| Bydgoszcz to Juchen | 506.86 mi (815.71 km) |
| Bydgoszcz to Julich | 517.11 mi (832.21 km) |
| Bydgoszcz to Juterbog | 221.13 mi (355.87 km) |
| Bydgoszcz to Kaarst | 499.43 mi (803.76 km) |
| Bydgoszcz to Kaiserslautern | 509.27 mi (819.60 km) |
| Bydgoszcz to Kalkar | 501.79 mi (807.56 km) |
| Bydgoszcz to Kall | 519.47 mi (836.01 km) |
| Bydgoszcz to Kaltenkirchen | 334.09 mi (537.67 km) |
