| Kocaeli to Krosno Odrzanskie | 1,047.16 mi (1,685.24 km) |
| Kocaeli to Krotoszyn | 959.24 mi (1,543.75 km) |
| Kocaeli to Kruszwica | 986.76 mi (1,588.03 km) |
| Kocaeli to Krynica | 739.34 mi (1,189.85 km) |
| Kocaeli to Krzeszowice | 815.54 mi (1,312.48 km) |
| Kocaeli to Kudowa-Zdroj | 937.44 mi (1,508.66 km) |
| Kocaeli to Kutno | 935.92 mi (1,506.22 km) |
| Kocaeli to Kwidzyn | 1,031.23 mi (1,659.60 km) |
| Kocaeli to Lancut | 742.17 mi (1,194.40 km) |
| Kocaeli to Lapy | 906.33 mi (1,458.59 km) |
| Kocaeli to Lask | 906.70 mi (1,459.20 km) |
| Kocaeli to Laziska Gorne | 839.83 mi (1,351.58 km) |
| Kocaeli to Lebork | 1,104.69 mi (1,777.82 km) |
| Kocaeli to Leczna | 801.57 mi (1,290.00 km) |
| Kocaeli to Leczyca | 930.01 mi (1,496.70 km) |
