| Idar-Oberstein to Kikinda | 665.11 mi (1,070.40 km) |
| Idar-Oberstein to Kladovo | 798.54 mi (1,285.13 km) |
| Idar-Oberstein to Knic | 748.00 mi (1,203.80 km) |
| Idar-Oberstein to Knjazevac | 833.99 mi (1,342.18 km) |
| Idar-Oberstein to Koceljeva | 689.00 mi (1,108.84 km) |
| Idar-Oberstein to Kosjeric | 712.94 mi (1,147.37 km) |
| Idar-Oberstein to Kovacica | 697.37 mi (1,122.30 km) |
| Idar-Oberstein to Kovin | 725.03 mi (1,166.83 km) |
| Idar-Oberstein to Kragujevac | 752.86 mi (1,211.61 km) |
| Idar-Oberstein to Kraljevo | 754.96 mi (1,214.98 km) |
| Idar-Oberstein to Krupanj | 675.89 mi (1,087.74 km) |
| Idar-Oberstein to Krusevac | 786.18 mi (1,265.24 km) |
| Idar-Oberstein to Kucevo | 763.93 mi (1,229.43 km) |
| Idar-Oberstein to Kula | 634.70 mi (1,021.44 km) |
| Idar-Oberstein to Kursumlija | 802.84 mi (1,292.05 km) |
