| Viterbo to Idar-Oberstein | 553.48 mi (890.73 km) |
| Viterbo to Idstein | 569.00 mi (915.72 km) |
| Viterbo to Illertissen | 412.43 mi (663.73 km) |
| Viterbo to Illingen | 538.32 mi (866.35 km) |
| Viterbo to Ilmenau | 573.82 mi (923.48 km) |
| Viterbo to Ilsede | 686.29 mi (1,104.48 km) |
| Viterbo to Ilsenburg | 656.17 mi (1,056.01 km) |
| Viterbo to Ilsfeld | 478.32 mi (769.78 km) |
| Viterbo to Ilvesheim | 515.99 mi (830.41 km) |
| Viterbo to Immenstadt im Allgau | 367.43 mi (591.32 km) |
| Viterbo to Ingelheim | 556.60 mi (895.76 km) |
| Viterbo to Ingolstadt | 439.59 mi (707.44 km) |
| Viterbo to Iserlohn | 653.56 mi (1,051.80 km) |
| Viterbo to Isernhagen-Sud | 699.84 mi (1,126.29 km) |
| Viterbo to Ismaning | 401.83 mi (646.68 km) |
