| Cities | Distance |
|---|---|
| Kocaeli to Glyka Nera | 376.32 mi (605.63 km) |
| Kocaeli to Grevena | 448.83 mi (722.32 km) |
| Kocaeli to Ialysos | 315.05 mi (507.03 km) |
| Kocaeli to Ilion | 381.65 mi (614.20 km) |
| Kocaeli to Ilioupoli | 383.01 mi (616.39 km) |
| Kocaeli to Ioannina | 484.07 mi (779.04 km) |
| Kocaeli to Irakleio | 455.98 mi (733.83 km) |
| Kocaeli to Irakleio | 377.95 mi (608.25 km) |
| Kocaeli to Kaisariani | 381.33 mi (613.69 km) |
| Kocaeli to Kalamaria | 365.23 mi (587.79 km) |
| Kocaeli to Kalamata | 492.07 mi (791.92 km) |
| Kocaeli to Kallithea | 384.69 mi (619.10 km) |
| Kocaeli to Kalymnos | 304.62 mi (490.24 km) |
| Kocaeli to Kalyvia Thorikou | 379.21 mi (610.29 km) |
| Kocaeli to Kamatero | 380.14 mi (611.77 km) |