As per International Monetary Fund (IMF) 2019 estimates, the GDP (nominal) of Sri Lanka is USD 86,566 million. This GDP (nominal) is around 0.10% of Entire World’s GDP. Currently (2019), the world rank of Sri Lanka is 65 in terms of GDP Nominal.
However, as per 2018 estimates by World Bank, the GDP (Nominal) of Sri Lanka is USD 88,901 million. As per World Bank Estimates, the global rank of Sri Lanka is 63.

Sri Lanka GDP [PPP]

On the other hand, as per 2019 estimates by International Monetary Fund, the GDP (PPP) of Sri Lanka is USD 304,826 Million. This is 0.21% of World. Sri Lanka on this basis has a global rank of 58.