The Global GDP is US$87.4T in 2019.
Below is an interactive presentation about the GDP per country worldwide. Click on a country from the map to see its GDP or filter which countries you would like to look into by ticking the check box
To have a better view of the rankings of countries based on their GDP, below is an interactive bar graph that presents GDP of countries worldwide beginning from the highest to the lowest.
Source: World Bank GDP data (Current $) for 2019