Bucharest
260 km²
Istanbul
1,269 km²
City Map Compare/Bucharest vs Istanbulvs
vs
5 km
Istanbul covers 1,269 km² of contiguous built-up land, 4.9× the built-up area of Bucharest (260 km²).
| Bucharest | Istanbul | |
|---|---|---|
| Urban area | Bucharest | Istanbul |
| Population (2025) | 1.97 million | 14.2 million |
| Built-up area | 260 km² | 1,269 km² |
| Density | 7,582 /km² | 11,198 /km² |
Urban area = contiguous built-up land and the people living in it in 2025, drawn the same way for every city regardless of administrative boundaries. Source: GHSL Urban Centre Database R2024A, European Commission, Joint Research Centre (CC BY 4.0); some names adjusted to the city names people use, and country attribution follows the dataset.