| Castel Bolognese to Isny im Allgau | 248.02 mi (399.15 km) |
| Castel Bolognese to Isselburg | 574.36 mi (924.35 km) |
| Castel Bolognese to Issum | 557.27 mi (896.85 km) |
| Castel Bolognese to Itzehoe | 671.76 mi (1,081.09 km) |
| Castel Bolognese to Jena | 456.85 mi (735.23 km) |
| Castel Bolognese to Jever | 663.41 mi (1,067.65 km) |
| Castel Bolognese to Jork | 644.02 mi (1,036.46 km) |
| Castel Bolognese to Juchen | 529.21 mi (851.68 km) |
| Castel Bolognese to Julich | 521.70 mi (839.60 km) |
| Castel Bolognese to Juterbog | 533.61 mi (858.77 km) |
| Castel Bolognese to Kaarst | 533.74 mi (858.98 km) |
| Castel Bolognese to Kaiserslautern | 402.07 mi (647.08 km) |
| Castel Bolognese to Kalkar | 572.10 mi (920.71 km) |
| Castel Bolognese to Kall | 495.37 mi (797.22 km) |
| Castel Bolognese to Kaltenkirchen | 663.16 mi (1,067.26 km) |
