| Idar-Oberstein to Knurow | 506.06 mi (814.43 km) |
| Idar-Oberstein to Kobylka | 629.00 mi (1,012.28 km) |
| Idar-Oberstein to Kokoszki | 572.28 mi (920.99 km) |
| Idar-Oberstein to Kolbuszowa | 642.24 mi (1,033.59 km) |
| Idar-Oberstein to Kolno | 676.49 mi (1,088.70 km) |
| Idar-Oberstein to Kolo | 521.17 mi (838.75 km) |
| Idar-Oberstein to Kolobrzeg | 467.46 mi (752.30 km) |
| Idar-Oberstein to Koluszki | 563.19 mi (906.37 km) |
| Idar-Oberstein to Komorniki | 444.37 mi (715.15 km) |
| Idar-Oberstein to Konin | 506.50 mi (815.13 km) |
| Idar-Oberstein to Konskie | 584.71 mi (941.00 km) |
| Idar-Oberstein to Konstancin-Jeziorna | 622.38 mi (1,001.63 km) |
| Idar-Oberstein to Konstantynow Lodzki | 543.53 mi (874.72 km) |
| Idar-Oberstein to Koronowo | 519.44 mi (835.96 km) |
| Idar-Oberstein to Koscian | 438.25 mi (705.29 km) |
