Vietnam is about 6 times smaller than Saudi Arabia.

Saudi Arabia is approximately 2,149,690 sq km, while Vietnam is approximately 331,210 sq km, making Vietnam 15.41% the size of Saudi Arabia. Meanwhile, the population of Saudi Arabia is ~35.4 million people (68.5 million more people live in Vietnam).
This to-scale comparison of Saudi Arabia vs. Vietnam uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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