City size comparison

compared to

Oslo is about 1.9 times bigger than Turku.

Turku is approximately 246 sq km, while Oslo is approximately 454 sq km, making Oslo 85% larger than Turku.
Tip: This to-scale comparison of Turku vs. Oslo uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Oslo vs. Turku

Flip Comparison · See true size
See Oslo on top of Turku
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Cost of Living Comparison · 7 categories - 2026 data
Turku is 39.8% cheaper than Oslo
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