| Karlovo to Idstein | 942.21 mi (1,516.34 km) |
| Karlovo to Illertissen | 809.26 mi (1,302.38 km) |
| Karlovo to Illingen | 967.35 mi (1,556.81 km) |
| Karlovo to Ilmenau | 859.09 mi (1,382.56 km) |
| Karlovo to Ilsede | 949.98 mi (1,528.85 km) |
| Karlovo to Ilsenburg | 916.15 mi (1,474.40 km) |
| Karlovo to Ilsfeld | 867.37 mi (1,395.90 km) |
| Karlovo to Ilvesheim | 907.60 mi (1,460.64 km) |
| Karlovo to Immenstadt im Allgau | 786.99 mi (1,266.53 km) |
| Karlovo to Ingelheim | 943.19 mi (1,517.91 km) |
| Karlovo to Ingolstadt | 770.14 mi (1,239.43 km) |
| Karlovo to Iserlohn | 1,004.21 mi (1,616.11 km) |
| Karlovo to Isernhagen-Sud | 967.96 mi (1,557.78 km) |
| Karlovo to Ismaning | 743.05 mi (1,195.82 km) |
| Karlovo to Isny im Allgau | 797.74 mi (1,283.83 km) |
