Country size comparison
Vietnam is about 29 times smaller than China.
China is approximately 9,596,960 sq km, while Vietnam is approximately 331,210 sq km, making Vietnam 3.45% the size of China. Meanwhile, the population of China is ~1.4 billion people (1.3 billion fewer people live in Vietnam).
This to-scale comparison of China vs. Vietnam uses the Mercator projection, which distorts the size of regions near the poles. Learn more. Note: Try dragging the outline to reposition.