| City | Distance | Mileage |
|---|
| Distance from Kocaeli to Antakya | 751 km | 467 miles |
| Distance from Kocaeli to Izmit | 10 km | 6 miles |
| Distance from Kocaeli to Gumushkhane | 811 km | 504 miles |
| Distance from Kocaeli to Khanjarah | 316 km | 196 miles |
| Distance from Kocaeli to Adapazari | 45 km | 28 miles |
| Distance from Yozgat to Kocaeli | 433 km | 269 miles |
| Distance from Van to Kocaeli | 1,183 km | 735 miles |
| Distance from Usak to Kocaeli | 246 km | 153 miles |
| Distance from Sanliurfa to Kocaeli | 872 km | 542 miles |
| Distance from Tunceli to Kocaeli | 846 km | 526 miles |
| Distance from Sivas to Kocaeli | 617 km | 383 miles |
| Distance from Siirt to Kocaeli | 1,085 km | 674 miles |
| Distance from Nigde to Kocaeli | 522 km | 324 miles |
| Distance from Nevsehir to Kocaeli | 482 km | 300 miles |
| Distance from Mus to Kocaeli | 1,019 km | 633 miles |
| Distance from Mugla to Kocaeli | 425 km | 264 miles |
| Distance from Mardin to Kocaeli | 1,015 km | 631 miles |
| Distance from Manisa to Kocaeli | 325 km | 202 miles |
| Distance from Malatya to Kocaeli | 775 km | 482 miles |
| Distance from Kutahya to Kocaeli | 160 km | 99 miles |
| Distance from Konya to Kocaeli | 400 km | 249 miles |
| Distance from Kirsehir to Kocaeli | 411 km | 255 miles |
| Distance from Kayseri to Kocaeli | 534 km | 332 miles |
| Distance from Kahramanmaras to Kocaeli | 707 km | 439 miles |
| Distance from Izmir to Kocaeli | 358 km | 222 miles |
| Distance from Isparta to Kocaeli | 348 km | 216 miles |
| Distance from Mersin to Kocaeli | 610 km | 379 miles |
| Distance from Hatay to Kocaeli | 752 km | 467 miles |
| Distance from Hakkari to Kocaeli | 1,246 km | 774 miles |
| Distance from Gaziantep to Kocaeli | 773 km | 480 miles |
| Distance from Eskisehir to Kocaeli | 133 km | 83 miles |
| Distance from Erzurum to Kocaeli | 969 km | 602 miles |
| Distance from Erzincan to Kocaeli | 824 km | 512 miles |
| Distance from Elazig to Kocaeli | 834 km | 518 miles |
| Distance from Diyarbakir to Kocaeli | 945 km | 587 miles |
| Distance from Denizli to Kocaeli | 348 km | 216 miles |
| Distance from Burdur to Kocaeli | 350 km | 217 miles |
| Distance from Bitlis to Kocaeli | 1,081 km | 672 miles |
| Distance from Bingol to Kocaeli | 931 km | 578 miles |
| Distance from Bilecik to Kocaeli | 79 km | 49 miles |
| Distance from Balikesir to Kocaeli | 215 km | 134 miles |
| Distance from Aydin to Kocaeli | 378 km | 235 miles |
| Distance from Antalya to Kocaeli | 446 km | 277 miles |
| Distance from Ankara to Kocaeli | 272 km | 169 miles |
| Distance from Agri to Kocaeli | 1,123 km | 698 miles |
| Distance from Afyonkarahisar to Kocaeli | 240 km | 149 miles |
| Distance from Adiyaman to Kocaeli | 799 km | 496 miles |
| Distance from Adana to Kocaeli | 637 km | 396 miles |
| Distance from Osmaniye to Kocaeli | 692 km | 430 miles |
| Distance from Igdir to Kocaeli | 1,203 km | 748 miles |
| Distance from Aksaray to Kocaeli | 450 km | 280 miles |
| Distance from Batman to Kocaeli | 1,021 km | 634 miles |
| Distance from Karaman to Kocaeli | 500 km | 311 miles |
| Distance from Kirikkale to Kocaeli | 327 km | 203 miles |
| Distance from Sirnak to Kocaeli | 1,144 km | 711 miles |
| Distance from Kilis to Kocaeli | 777 km | 483 miles |
| Distance from Zonguldak to Kocaeli | 173 km | 107 miles |
| Distance from Trabzon to Kocaeli | 826 km | 513 miles |
| Distance from Tokat to Kocaeli | 566 km | 352 miles |
| Distance from Tekirdag to Kocaeli | 200 km | 124 miles |
| Distance from Sinop to Kocaeli | 458 km | 285 miles |
| Distance from Samsun to Kocaeli | 543 km | 337 miles |
| Distance from Sakarya to Kocaeli | 44 km | 27 miles |
| Distance from Rize to Kocaeli | 893 km | 555 miles |
| Distance from Ordu to Kocaeli | 672 km | 418 miles |
| Distance from Kocaeli to Kirklareli | 243 km | 151 miles |
| Distance from Kocaeli to Kastamonu | 331 km | 206 miles |
| Distance from Kocaeli to Kars | 1,113 km | 692 miles |
| Distance from Kocaeli to Istanbul | 78 km | 48 miles |
| Distance from Kocaeli to Gumushane | 810 km | 503 miles |
| Distance from Kocaeli to Giresun | 715 km | 444 miles |
| Distance from Kocaeli to Edirne | 293 km | 182 miles |
| Distance from Kocaeli to Corum | 429 km | 267 miles |
| Distance from Kocaeli to Cankiri | 316 km | 196 miles |
| Distance from Kocaeli to Canakkale | 304 km | 189 miles |
| Distance from Kocaeli to Bursa | 101 km | 63 miles |
| Distance from Kocaeli to Bolu | 146 km | 91 miles |
| Distance from Kocaeli to Artvin | 1,002 km | 623 miles |
| Distance from Kocaeli to Amasya | 502 km | 312 miles |
| Distance from Kocaeli to Bartin | 223 km | 139 miles |
| Distance from Kocaeli to Karabuk | 233 km | 145 miles |
| Distance from Kocaeli to Yalova | 55 km | 34 miles |
| Distance from Kocaeli to Ardahan | 1,076 km | 669 miles |
| Distance from Kocaeli to Bayburt | 876 km | 544 miles |
| Distance from Kocaeli to Duzce | 108 km | 67 miles |
