Country size comparison

compared to

Vietnam is about 1.9 times bigger than Oklahoma.

Oklahoma is approximately 177,847 sq km, while Vietnam is approximately 331,210 sq km, making Vietnam 86% larger than Oklahoma. Meanwhile, the population of Oklahoma is ~4.1 million people (97.5 million more people live in Vietnam).
Tip: This to-scale comparison of Oklahoma vs. Vietnam uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Vietnam vs. Oklahoma

Flip Comparison · See true size
See Vietnam on top of Oklahoma
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Quality of Life Comparison · 4 statistics
Make 10.1 times more money in Oklahoma
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Cost of Living Comparison · 7 categories - 2026 data
Oklahoma is 2.7 times more expensive than Vietnam overall
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Moving from Vietnam to Oklahoma · Cost, visas & climate
Compare cost of living, salary and climate.
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