As per International Monetary Fund (IMF) 2019 estimates, the GDP (nominal) of Turkmenistan is USD 50,346 million. This GDP (nominal) is around 0.06% of Entire World’s GDP. Currently (2019), the world rank of Turkmenistan is 84 in terms of GDP Nominal.
However, as per 2018 estimates by World Bank, the GDP (Nominal) of Turkmenistan is USD 40,761 million. As per World Bank Estimates, the global rank of Turkmenistan is 91.

Turkmenistan GDP [PPP]

On the other hand, as per 2019 estimates by International Monetary Fund, the GDP (PPP) of Turkmenistan is USD 121,885 Million. This is 0.09% of World. Turkmenistan on this basis has a global rank of 78.