Australia is approximately 7,741,220 sq km, while Seychelles is approximately 455 sq km, making Seychelles 0.01% the size of Australia. Meanwhile, the population of Australia is ~25.5 million people (25.4 million fewer people live in Seychelles).
This to-scale map shows a size comparison of Australia compared to Seychelles. For more details, see an in-depth quality of life comparison of Seychelles vs. Australia using our country comparison tool.