As per International Monetary Fund (IMF) 2019 estimates, the GDP (nominal) of Zambia is USD 24,615 million. This GDP (nominal) is around 0.03% of Entire World’s GDP. Currently (2019), the world rank of Zambia is 107 in terms of GDP Nominal.
However, as per 2018 estimates by World Bank, the GDP (Nominal) of Zambia is USD 26,720 million. As per World Bank Estimates, the global rank of Zambia is 101.

Zambia GDP [PPP]

On the other hand, as per 2019 estimates by International Monetary Fund, the GDP (PPP) of Zambia is USD 75,996 Million. This is 0.05% of World. Zambia on this basis has a global rank of 97.