Oklahoma is about 1.6 times smaller than Nevada.

Nevada is approximately 284,448 sq km, while Oklahoma is approximately 177,847 sq km, making Oklahoma 62.52% the size of Nevada. Meanwhile, the population of Nevada is ~2.7 million people (1.1 million more people live in Oklahoma).
Tip: This to-scale comparison of Nevada vs. Oklahoma uses the Mercator projection, which distorts the size of regions near the poles.
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