City size comparison

compared to

Tokyo is around the same size as Seoul.

Seoul is approximately 605 sq km, while Tokyo is approximately 619 sq km, making Tokyo 2% larger than Seoul.
Tip: This to-scale comparison of Seoul vs. Tokyo uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Tokyo vs. Seoul

Flip Comparison · See true size
See Tokyo on top of Seoul
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Cost of Living Comparison · 7 categories - 2026 data
Seoul is 0.1% cheaper than Tokyo
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