As per International Monetary Fund (IMF) 2019 estimates, the GDP (nominal) of Brunei is USD 13,325 million. This GDP (nominal) is around 0.02% of Entire World’s GDP. Currently (2019), the world rank of Brunei is 127 in terms of GDP Nominal.

Brunei Darussalam GDP [PPP]

On the other hand, as per 2019 estimates by International Monetary Fund, the GDP (PPP) of Brunei Darussalam is USD 35,920 Million. This is 0.03% of World. Brunei Darussalam on this basis has a global rank of 121.
However, as per 2018 estimates by World Bank, the GDP (Nominal) of Brunei is USD 13,567 million. As per World Bank Estimates, the global rank of Brunei is 124.