City size comparison

compared to

Oslo is about 2.1 times bigger than Helsinki.

Helsinki is approximately 214 sq km, while Oslo is approximately 454 sq km, making Oslo 112% larger than Helsinki.
Tip: This to-scale comparison of Helsinki vs. Oslo uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Oslo vs. Helsinki

Flip Comparison · See true size
See Oslo on top of Helsinki
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Cost of Living Comparison · 7 categories - 2026 data
Helsinki is 29.2% cheaper than Oslo
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