Australia is approximately 7,741,220 sq km, while Swaziland is approximately 17,364 sq km, making Swaziland 0.22% the size of Australia. Meanwhile, the population of Australia is ~25.5 million people (24.4 million fewer people live in Swaziland).
This to-scale map shows a size comparison of Australia compared to Swaziland. For more details, see an in-depth quality of life comparison of Swaziland vs. Australia using our country comparison tool.
