| Kocaeli to Kluczbork | 900.80 mi (1,449.70 km) |
| Kocaeli to Knurow | 848.27 mi (1,365.15 km) |
| Kocaeli to Kobylka | 898.90 mi (1,446.65 km) |
| Kocaeli to Kokoszki | 1,076.61 mi (1,732.63 km) |
| Kocaeli to Kolbuszowa | 764.13 mi (1,229.74 km) |
| Kocaeli to Kolno | 949.78 mi (1,528.52 km) |
| Kocaeli to Kolo | 952.94 mi (1,533.60 km) |
| Kocaeli to Kolobrzeg | 1,138.84 mi (1,832.79 km) |
| Kocaeli to Koluszki | 898.09 mi (1,445.34 km) |
| Kocaeli to Komorniki | 1,009.99 mi (1,625.43 km) |
| Kocaeli to Konin | 963.59 mi (1,550.74 km) |
| Kocaeli to Konskie | 851.75 mi (1,370.76 km) |
| Kocaeli to Konstancin-Jeziorna | 885.93 mi (1,425.76 km) |
| Kocaeli to Konstantynow Lodzki | 910.09 mi (1,464.65 km) |
| Kocaeli to Koronowo | 1,031.75 mi (1,660.44 km) |
