| Characteristic | Number of Earths |
|---|---|
| United States | 5.1 |
| Australia | 4.5 |
| Russia | 3.4 |
| Germany | 3 |
| Japan | 2.9 |
| Portugal | 2.9 |
| France | 2.8 |
| Switzerland | 2.8 |
| Spain | 2.8 |
| Italy | 2.7 |
| United Kingdom | 2.6 |
| China | 2.4 |
| Brazil | 1.6 |
| India | 0.8 |
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Worldwide
2022
was calculated using the 2022 edition of the National Footprint and Biocapacity Accounts, which features Ecological Footprint and biocapacity data from 1961 to the latest data-year of 2017.
The ecological footprint is "a measure of how much area of biologically productive land and water an individual, population, or activity requires to produce all the resources it consumes and to absorb the waste it generates, using prevailing technology and resource management practices. The Ecological Footprint is usually measured in global hectares. Because trade is global, an individual or country's Footprint includes land or sea from all over the world. Without further specification, Ecological Footprint generally refers to the Ecological Footprint of consumption. Ecological Footprint is often referred to in short form as Footprint."
The number of Earths is used to represent how many Earths are required to provide the resources used and to absorb waste.
