Gini Coefficient Calculator

Calculate the Gini coefficient to measure inequality in a distribution, ranging from 0 (perfect equality) to 1 (maximum inequality).

Gini Coefficient

0.400000

Mean Value40.0000
Total200.0000

Gini Coefficient vs Income/Value 1 (lowest)

Vedi formula →

Formula

## How to Calculate the Gini Coefficient ### Formula **Gini = Sum of all |xi - xj| / (2 * n^2 * mean)** The Gini coefficient sums all pairwise absolute differences and normalizes. A value of 0 means perfect equality (everyone has the same). A value approaching 1 means extreme inequality (one person has everything). It is the most widely used measure of income inequality.

Esempio Risolto

Five incomes: 10, 20, 30, 40, 100.

  1. 01Mean = (10+20+30+40+100)/5 = 200/5 = 40
  2. 02Sum of all 25 pairwise |xi - xj| = 440
  3. 03Gini = 440 / (2 * 25 * 40) = 440 / 2000 = 0.22
  4. 04This indicates moderate inequality