As per International Monetary Fund (IMF) 2019 estimates, the GDP (nominal) of Barbados is USD 5,207 million. This GDP (nominal) is around 0.01% of Entire World’s GDP. Currently (2019), the world rank of Barbados is 153 in terms of GDP Nominal.
However, as per 2018 estimates by World Bank, the GDP (Nominal) of Barbados is USD 4,674 (2017) million. As per World Bank Estimates, the global rank of Barbados is 150.

Barbados GDP [PPP]

On the other hand, as per 2019 estimates by International Monetary Fund, the GDP (PPP) of Barbados is USD 5,434 Million.  Barbados on this basis has a global rank of 161.