100
km by road
Distance Between İSTANBUL and KOCAELİ
As the Crow Flies77,8 km
Estimated Road Distance≈ 100 km
Estimated Driving Time1 h 11 min
Nearest Provinces — İSTANBUL
Related Distance Pages
Frequently Asked Questions
How far is İSTANBUL from KOCAELİ?
The straight-line distance is about 77,8 km. By road it is approximately 100 km, about 1 h 11 min by car.
Is the road distance exact?
No. The road distance is an estimate (straight-line × 1.28). The actual route may be shorter or longer depending on highways and roads.
Can I calculate district-to-district distances?
Yes — use the calculator above and pick any of the 973 districts on both sides.