| Monte Porzio Catone to Isny im Allgau | 426.59 mi (686.53 km) |
| Monte Porzio Catone to Isselburg | 751.82 mi (1,209.94 km) |
| Monte Porzio Catone to Issum | 734.33 mi (1,181.80 km) |
| Monte Porzio Catone to Itzehoe | 849.42 mi (1,367.01 km) |
| Monte Porzio Catone to Jena | 631.76 mi (1,016.71 km) |
| Monte Porzio Catone to Jever | 842.19 mi (1,355.38 km) |
| Monte Porzio Catone to Jork | 821.64 mi (1,322.30 km) |
| Monte Porzio Catone to Juchen | 705.79 mi (1,135.86 km) |
| Monte Porzio Catone to Julich | 697.72 mi (1,122.87 km) |
| Monte Porzio Catone to Juterbog | 703.33 mi (1,131.91 km) |
| Monte Porzio Catone to Kaarst | 710.69 mi (1,143.74 km) |
| Monte Porzio Catone to Kaiserslautern | 578.41 mi (930.86 km) |
| Monte Porzio Catone to Kalkar | 749.21 mi (1,205.74 km) |
| Monte Porzio Catone to Kall | 671.08 mi (1,080.00 km) |
| Monte Porzio Catone to Kaltenkirchen | 840.32 mi (1,352.37 km) |
