Country size comparison
compared to
South Korea is about 3.8 times smaller than Japan.
Japan is approximately 377,915 sq km, while South Korea is approximately 99,720 sq km, making South Korea 26.39% the size of Japan. Meanwhile, the population of Japan is ~124.2 million people (72.4 million fewer people live in South Korea).
Tip:
This to-scale comparison of
Japan
vs.
South Korea
uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: South Korea vs. Japan
Flip Comparison · See true size
See South Korea on top of Japan
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Quality of Life Comparison · 9 statistics
Be 15.3% less likely to have internet access in Japan
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Cost of Living Comparison · 7 categories - 2026 data
Japan is 0.5% cheaper than South Korea overall
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Moving from South Korea to Japan · OECD 2023
27,566 people moved from South Korea to Japan.
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