Country size comparison
compared to
Japan is around the same size as California.
California is approximately 403,882 sq km, while Japan is approximately 377,915 sq km, making Japan 93.57% the size of California. Meanwhile, the population of California is ~37.3 million people (87.0 million more people live in Japan).
Tip: This to-scale comparison of California vs. Japan uses the Mercator projection, which distorts the size of regions near the poles. Try dragging the outline to reposition.
Compare further: Japan vs. California
Flip Comparison · See true size
See Japan on top of California
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Quality of Life Comparison · 4 statistics
Be 97.7% more likely to be unemployed in California
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Cost of Living Comparison · 7 categories - 2026 data
California is 2.3 times more expensive than Japan overall
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Moving from Japan to California · Cost, visas & climate
Compare cost of living, salary and climate.
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