Country size comparison

compared to

Brunei is about 66 times smaller than Japan.

Japan is approximately 377,915 sq km, while Brunei is approximately 5,765 sq km, making Brunei 1.53% the size of Japan. Meanwhile, the population of Japan is ~124.2 million people (123.7 million fewer people live in Brunei).
Tip: This to-scale comparison of Japan vs. Brunei uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Brunei vs. Japan

Flip Comparison · See true size
See Brunei on top of Japan
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Quality of Life Comparison · 10 statistics
Be 51.0% less likely to be unemployed in Japan
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Cost of Living Comparison · 7 categories - 2026 data
Japan is 18.0% more expensive than Brunei overall
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Moving from Brunei to Japan · OECD 2023
108 people moved from Brunei to Japan.
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