| Castelfidardo to Isny im Allgau | 337.68 mi (543.44 km) |
| Castelfidardo to Isselburg | 664.81 mi (1,069.91 km) |
| Castelfidardo to Issum | 648.75 mi (1,044.06 km) |
| Castelfidardo to Itzehoe | 745.46 mi (1,199.70 km) |
| Castelfidardo to Jena | 523.74 mi (842.87 km) |
| Castelfidardo to Jever | 744.21 mi (1,197.69 km) |
| Castelfidardo to Jork | 717.65 mi (1,154.94 km) |
| Castelfidardo to Juchen | 621.80 mi (1,000.70 km) |
| Castelfidardo to Julich | 615.32 mi (990.26 km) |
| Castelfidardo to Juterbog | 589.71 mi (949.05 km) |
| Castelfidardo to Kaarst | 625.60 mi (1,006.81 km) |
| Castelfidardo to Kaiserslautern | 496.02 mi (798.27 km) |
| Castelfidardo to Kalkar | 663.38 mi (1,067.61 km) |
| Castelfidardo to Kall | 589.61 mi (948.89 km) |
| Castelfidardo to Kaltenkirchen | 735.08 mi (1,182.99 km) |
