As per International Monetary Fund (IMF) 2019 estimates, the GDP (nominal) of Mexico is USD 1,274,175 million. This GDP (nominal) is around 1.46% of Entire World’s GDP. Currently (2019), the world rank of Mexico is 15 in terms of GDP Nominal.
However, as per 2018 estimates by World Bank, the GDP (Nominal) of Mexico is USD 1,223,809 million. As per World Bank Estimates, the global rank of Mexico is 15.

Mexico GDP [PPP]

On the other hand, as per 2019 estimates by International Monetary Fund, the GDP (PPP) of Mexico is USD 2,627,851 Million. This is 1.85% of World. Mexico on this basis has a global rank of 11.