Measure income or wealth inequality within a population.
Population Data
List values for each individual or group separated by commas.
Formula
G = Area A / (Area A + Area B)
Geometrically, it represents the area between the Line of Equality and the Lorenz Curve.
Inequality Analysis
Gini Index0.2667Equitable Distribution
Total Population5
Mean Value30.0
Lorenz Curve Visualization
Pop %
Wealth %
About this calculator
Overview
The Gini coefficient is a measure of statistical dispersion intended to represent the income or wealth inequality within a nation or a social group. It was developed by the Italian statistician and sociologist Corrado Gini and published in his 1912 paper 'Variability and Mutability'.
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Pro Tips
A Gini coefficient of zero expresses perfect equality.
A Gini coefficient of one (or 100%) expresses maximal inequality.
The Lorenz curve is a graphical representation of the distribution.
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Fun Facts
"Modern nations usually score between 0.25 (Fair) and 0.60 (Extreme)."
"If a single person owns 100% of wealth, the score is 1.0."
"If everyone has exactly the same, the score is 0.0."
"Named after Corrado Gini, an Italian sociologist and statistician."
