As per International Monetary Fund (IMF) 2019 estimates, the GDP (nominal) of Chad is USD 11,372 million. This GDP (nominal) is around 0.01% of Entire World’s GDP. Currently (2019), the world rank of Chad is 136 in terms of GDP Nominal.
However, as per 2018 estimates by World Bank, the GDP (Nominal) of Chad is USD 11,303 million. As per World Bank Estimates, the global rank of Chad is 133.

Chad GDP [PPP]

On the other hand, as per 2019 estimates by International Monetary Fund, the GDP (PPP) of Chad is USD 31,760 Million. This is 0.02% of World. Chad on this basis has a global rank of 129.