City size comparison

compared to

Istanbul is about 44 times bigger than San Francisco.

San Francisco (including the city proper only) is approximately 121 sq km, while Istanbul is approximately 5,343 sq km, making Istanbul 4,316% larger than San Francisco.
Tip: This to-scale comparison of San Francisco vs. Istanbul uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Istanbul vs. San Francisco

Flip Comparison · See true size
See Istanbul on top of San Francisco
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Cost of Living Comparison · 7 categories - 2026 data
San Francisco is 2.7 times more expensive than Istanbul
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