| Kocaeli to Jicin | 967.66 mi (1,557.31 km) |
| Kocaeli to Jihlava | 916.37 mi (1,474.76 km) |
| Kocaeli to Jindrichuv Hradec | 928.39 mi (1,494.10 km) |
| Kocaeli to Jirkov | 1,037.93 mi (1,670.39 km) |
| Kocaeli to Kadan | 1,039.65 mi (1,673.15 km) |
| Kocaeli to Karlovy Vary | 1,049.04 mi (1,688.26 km) |
| Kocaeli to Karvina | 834.86 mi (1,343.58 km) |
| Kocaeli to Kladno | 1,000.55 mi (1,610.22 km) |
| Kocaeli to Klasterec nad Ohri | 1,043.65 mi (1,679.60 km) |
| Kocaeli to Klatovy | 1,003.09 mi (1,614.31 km) |
| Kocaeli to Kolin | 955.89 mi (1,538.36 km) |
| Kocaeli to Koprivnice | 835.65 mi (1,344.86 km) |
| Kocaeli to Kralupy nad Vltavou | 996.44 mi (1,603.61 km) |
| Kocaeli to Kraluv Dvur | 995.23 mi (1,601.67 km) |
| Kocaeli to Krnov | 873.27 mi (1,405.40 km) |
