| Idar-Oberstein to Kocaeli | 1,254.57 mi (2,019.03 km) |
| Idar-Oberstein to Konak | 1,248.97 mi (2,010.03 km) |
| Idar-Oberstein to Konakli | 1,523.59 mi (2,451.99 km) |
| Idar-Oberstein to Konya | 1,487.46 mi (2,393.84 km) |
| Idar-Oberstein to Koprukoy | 1,802.12 mi (2,900.23 km) |
| Idar-Oberstein to Korfez | 1,246.02 mi (2,005.27 km) |
| Idar-Oberstein to Korkut | 1,846.65 mi (2,971.89 km) |
| Idar-Oberstein to Kose | 1,695.35 mi (2,728.40 km) |
| Idar-Oberstein to Kovancilar | 1,763.62 mi (2,838.27 km) |
| Idar-Oberstein to Koyulhisar | 1,611.91 mi (2,594.11 km) |
| Idar-Oberstein to Kozan | 1,643.68 mi (2,645.25 km) |
| Idar-Oberstein to Kozlu | 1,305.06 mi (2,100.29 km) |
| Idar-Oberstein to Kozluk | 1,855.99 mi (2,986.93 km) |
| Idar-Oberstein to Kucuk Dalyan | 1,714.95 mi (2,759.94 km) |
| Idar-Oberstein to Kucukcekmece | 1,198.16 mi (1,928.25 km) |
