Tasmania (Australia) is 4.3% larger than Sri Lanka.
Area: 65,610 km2 World Factbook
Population: 21,866,445 (July 2014) World Factbook
Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka, is an island country in the northern Indian Ocean off the southern coast of the Indian subcontinent in South Asia. Wikipedia
Tasmania is an island state, part of the Commonwealth of Australia, located 240 kilometres to the south of the Australian continent, separated by Bass Strait. The state includes the island of Tasmania, the 26th largest island in the world, and the surrounding 334 islands. Wikipedia