City size comparison

compared to

Sydney is about 6 times bigger than Tehran.

Tehran is approximately 686 sq km, while Sydney (the 30 councils of metropolitan Sydney, without the Blue Mountains, Hawkesbury, Wollondilly and the Central Coast) is approximately 3,810 sq km, making Sydney 455% larger than Tehran.
Tip: This to-scale comparison of Tehran vs. Sydney uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Sydney vs. Tehran

Flip Comparison · See true size
See Sydney on top of Tehran
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Cost of Living Comparison · 7 categories - 2026 data
Tehran is 81.3% cheaper than Sydney
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