Mongolia is about 20 times bigger than Czech Republic.

Czech Republic is approximately 78,867 sq km, while Mongolia is approximately 1,564,116 sq km, making Mongolia 1,883% larger than Czech Republic. Meanwhile, the population of Czech Republic is ~10.7 million people (7.5 million fewer people live in Mongolia).
This to-scale comparison of Czech Republic vs. Mongolia uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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