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fin.Gini-coefficient Calculator
Calculates the Gini coefficient from income shares or a Lorenz curve, and classifies income inequality. Gini coefficients range from 0 (perfect equality) to 1 (one person has everything) — OECD countries range from 0.25 (Denmark) to 0.41 (USA).
Inputs
Q1 Income Pct
Reference formula or conversion factor shown for context.
Q2 Income Pct
Reference formula or conversion factor shown for context.
Q3 Income Pct
Reference formula or conversion factor shown for context.
Q4 Income Pct
Reference formula or conversion factor shown for context.
Q5 Income Pct
Reference formula or conversion factor shown for context.
Results
Gini coefficient
Sample size or count used in the calculation.
Lorenz curve area A
The computed two-dimensional surface area.
Gini = 1 - 2A
Sample size or count used in the calculation.
interpretation
Qualitative summary of what the computed numbers mean in practical terms.
perfect equality
A qualitative assessment of how the result compares to the desired standard or benchmark.
income quintile check
A pass/fail verification against the applicable code, standard, or threshold.