City size comparison

compared to

Oslo is about 12 times smaller than Istanbul.

Istanbul is approximately 5,343 sq km, while Oslo is approximately 454 sq km, making Oslo 8.5% the size of Istanbul.
Tip: This to-scale comparison of Istanbul vs. Oslo uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Oslo vs. Istanbul

Flip Comparison · See true size
See Oslo on top of Istanbul
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Cost of Living Comparison · 7 categories - 2026 data
Istanbul is 48.3% cheaper than Oslo
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