City size comparison

compared to

Seoul is about 1.3 times bigger than Oslo.

Oslo is approximately 454 sq km, while Seoul is approximately 605 sq km, making Seoul 33% larger than Oslo.
Tip: This to-scale comparison of Oslo vs. Seoul uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Seoul vs. Oslo

Flip Comparison · See true size
See Seoul on top of Oslo
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Cost of Living Comparison · 7 categories - 2026 data
Oslo is 63.3% more expensive than Seoul
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