About this tool
Explore fascinating world facts — population, area, GDP, HDI, and more with interactive comparisons and filtering across 121 countries.
World Facts Explorer is a searchable table of 121 countries carrying population, land area in square kilometres, nominal GDP in billions of US dollars, Human Development Index, capital city and continent. Sort by any of the four metrics, filter to one continent, search by country or capital, and pin up to five countries side by side to compare them directly. The current view — the top 20 plus any comparison — can be copied or downloaded as a plain-text report.
Open World Facts Explorer on AltFTool — it loads instantly in your browser.
Add your input to the workspace.
Adjust the options until the result looks right.
Copy or download the output and put it to work.
Pin up to five and their population, area, GDP and HDI line up in one panel rather than being read one profile at a time.
Typing Nairobi or Canberra finds the country, which is what you want when you know the city but not the entry name.
The report carries your current sort and continent filter with the top 20 rows, so the copy reflects what you were actually looking at.
121, spanning every continent group from the largest by population down to Vatican City at roughly 800 people and 0.44 km². It is a curated set rather than the full 193 UN member states, so some smaller nations are not present.
HDI runs from 0 to 1 and is grouped as Very High at 0.800 and above, High from 0.700 to 0.799, Medium from 0.550 to 0.699 and Low below 0.550 — the same thresholds the UN Development Programme uses. It combines life expectancy, education and income into one figure, so it says nothing about inequality within a country.
Nominal GDP, shown in billions of current US dollars — the United States at about $25,462B and China at about $17,963B in this dataset. PPP-adjusted figures would reorder the middle of the table considerably, so do not mix the two when quoting.
They are a fixed snapshot bundled with the page, not a live feed, with population, GDP and HDI values reflecting early-2020s estimates. For anything published or cited, check the current figure against the primary source — the UN Population Division, the World Bank or the UNDP Human Development Report.