| Frosinone to Isny im Allgau | 449.00 mi (722.60 km) |
| Frosinone to Isselburg | 775.63 mi (1,248.26 km) |
| Frosinone to Issum | 758.52 mi (1,220.72 km) |
| Frosinone to Itzehoe | 867.40 mi (1,395.94 km) |
| Frosinone to Jena | 647.60 mi (1,042.20 km) |
| Frosinone to Jever | 862.58 mi (1,388.19 km) |
| Frosinone to Jork | 839.58 mi (1,351.17 km) |
| Frosinone to Juchen | 730.36 mi (1,175.40 km) |
| Frosinone to Julich | 722.68 mi (1,163.04 km) |
| Frosinone to Juterbog | 715.93 mi (1,152.17 km) |
| Frosinone to Kaarst | 734.97 mi (1,182.82 km) |
| Frosinone to Kaiserslautern | 603.12 mi (970.62 km) |
| Frosinone to Kalkar | 773.35 mi (1,244.59 km) |
| Frosinone to Kall | 696.23 mi (1,120.48 km) |
| Frosinone to Kaltenkirchen | 857.71 mi (1,380.35 km) |
