The Happy Planet Index combines four elements to show how efficiently residents of different countries are using environmental resources to lead long, happy lives.

  • Life expectancy: The average number of years a person born today is expected to live in each country based on data collected by theUnited Nations.
  • Wellbeing: How satisfied the residents of each country say they feel with life overall, on a scale from zero to ten, based on data collected as part of the Gallup World Poll.
  • Inequality of outcomes: The inequalities between people within a country, in terms of how long they live, and how happy they feel, based on the distribution in each country’s life expectancy and wellbeing data.
  • Ecological Footprint: The average impact that each resident of a country places on the natural environment, based on data prepared by the Global Footprint Network.

More information on how the Happy Planet Index is calculated is available in the Methods Paper.