| Idar-Oberstein to Kerepestarcsa | 565.13 mi (909.49 km) |
| Idar-Oberstein to Keszthely | 499.81 mi (804.37 km) |
| Idar-Oberstein to Kiskoros | 590.73 mi (950.69 km) |
| Idar-Oberstein to Kiskunfelegyhaza | 612.60 mi (985.88 km) |
| Idar-Oberstein to Kiskunhalas | 605.18 mi (973.94 km) |
| Idar-Oberstein to Kiskunlachaza | 562.97 mi (906.01 km) |
| Idar-Oberstein to Kiskunmajsa | 613.97 mi (988.08 km) |
| Idar-Oberstein to Kisujszallas | 639.04 mi (1,028.43 km) |
| Idar-Oberstein to Kisvarda | 676.78 mi (1,089.17 km) |
| Idar-Oberstein to Komarom | 510.72 mi (821.93 km) |
| Idar-Oberstein to Komlo | 561.28 mi (903.29 km) |
| Idar-Oberstein to Kormend | 465.21 mi (748.69 km) |
| Idar-Oberstein to Koszeg | 451.84 mi (727.17 km) |
| Idar-Oberstein to Lajosmizse | 591.07 mi (951.23 km) |
| Idar-Oberstein to Maglod | 571.50 mi (919.75 km) |
