| Kilkis to Knurow | 668.97 mi (1,076.61 km) |
| Kilkis to Kobylka | 788.13 mi (1,268.36 km) |
| Kilkis to Kokoszki | 945.53 mi (1,521.68 km) |
| Kilkis to Kolbuszowa | 642.45 mi (1,033.92 km) |
| Kilkis to Kolno | 859.74 mi (1,383.62 km) |
| Kilkis to Kolo | 800.28 mi (1,287.93 km) |
| Kilkis to Kolobrzeg | 971.56 mi (1,563.57 km) |
| Kilkis to Koluszki | 757.96 mi (1,219.82 km) |
| Kilkis to Komorniki | 831.96 mi (1,338.91 km) |
| Kilkis to Konin | 805.87 mi (1,296.92 km) |
| Kilkis to Konskie | 715.49 mi (1,151.47 km) |
| Kilkis to Konstancin-Jeziorna | 771.37 mi (1,241.40 km) |
| Kilkis to Konstantynow Lodzki | 762.50 mi (1,227.13 km) |
| Kilkis to Koronowo | 882.58 mi (1,420.38 km) |
| Kilkis to Koscian | 821.14 mi (1,321.50 km) |
