| Viterbo to Isny im Allgau | 377.99 mi (608.32 km) |
| Viterbo to Isselburg | 701.87 mi (1,129.55 km) |
| Viterbo to Issum | 684.17 mi (1,101.07 km) |
| Viterbo to Itzehoe | 803.77 mi (1,293.54 km) |
| Viterbo to Jena | 588.40 mi (946.93 km) |
| Viterbo to Jever | 794.56 mi (1,278.71 km) |
| Viterbo to Jork | 776.04 mi (1,248.91 km) |
| Viterbo to Juchen | 655.43 mi (1,054.81 km) |
| Viterbo to Julich | 647.14 mi (1,041.47 km) |
| Viterbo to Juterbog | 663.09 mi (1,067.14 km) |
| Viterbo to Kaarst | 660.48 mi (1,062.95 km) |
| Viterbo to Kaiserslautern | 528.05 mi (849.81 km) |
| Viterbo to Kalkar | 699.07 mi (1,125.05 km) |
| Viterbo to Kall | 620.42 mi (998.46 km) |
| Viterbo to Kaltenkirchen | 795.19 mi (1,279.74 km) |
