Country size comparison
compared to
Sri Lanka is about 2.4 times bigger than Burundi.
Burundi is approximately 27,830 sq km, while Sri Lanka is approximately 65,610 sq km, making Sri Lanka 136% larger than Burundi. Meanwhile, the population of Burundi is ~12.7 million people (10.5 million more people live in Sri Lanka).
Compare further: Sri Lanka vs. Burundi