Country size comparison

compared to

Japan is about 2.1 times bigger than Oklahoma.

Oklahoma is approximately 177,847 sq km, while Japan is approximately 377,915 sq km, making Japan 112% larger than Oklahoma. Meanwhile, the population of Oklahoma is ~4.1 million people (119.2 million more people live in Japan).
Tip: This to-scale comparison of Oklahoma vs. Japan uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Japan vs. Oklahoma

Flip Comparison · See true size
See Japan on top of Oklahoma
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Quality of Life Comparison · 3 statistics
Be 55.1% more likely to be unemployed in Oklahoma
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Cost of Living Comparison · 7 categories - 2026 data
Oklahoma is 58.8% more expensive than Japan overall
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Moving from Japan to Oklahoma · Cost, visas & climate
Compare cost of living, salary and climate.
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