// multi-utility computation suite · offline · instant · precise
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sci.Gini-coefficient-income Calculator
Calculates the Gini coefficient G = A/(A+B) from an income distribution, where A is the area between the Lorenz curve and the equality line. G = 0 is perfect equality; G = 1 is perfect inequality — Nordic countries have G ≈ 0.25; Brazil ≈ 0.53; South Africa ≈ 0.63.
Inputs
Q1 Share
Reference formula or conversion factor shown for context.
Q2 Share
Reference formula or conversion factor shown for context.
Q3 Share
Reference formula or conversion factor shown for context.
Q4 Share
Reference formula or conversion factor shown for context.
Q5 Share
Reference formula or conversion factor shown for context.
Results
Gini coefficient
Sample size or count used in the calculation.
Gini as percentage
The result expressed as a percentage of the reference value.
Lorenz curve area B
The computed two-dimensional surface area.
income check (should sum ≈100%)
A pass/fail verification against the applicable code, standard, or threshold.
Gini = 1 − 2B where B = area under Lorenz curve
The computed two-dimensional surface area.
benchmarks
Reference value for comparison — the industry standard, historical average, or target that this result is measured against.