Loading calculator…

Gini Coefficient Calculator - Income Inequality

Calculate the Gini coefficient to measure income or wealth inequality within a population. Economics calculator for social science, public policy, development economics, and statistics. Produces Lorenz curve data and inequality index from 0 (perfect equality) to 1 (perfect inequality).

Gini Coefficient

G = A / (A + B)

Keterangan:

  • G
    Gini coefficient (0-1)
  • A
    Area between the equality line and Lorenz curve
  • B
    Area under the Lorenz curve

How to Use

  1. 1

    Enter Income Data

    Enter population income data sorted in ascending order.

  2. 2

    Calculate Cumulative Values

    The system calculates cumulative percentages.

  3. 3

    Calculate Gini

    Get the Gini value (0 = perfect equality, 1 = perfect inequality).

Contoh Perhitungan

Simple Example

Soal:

Population: 5 people with incomes [10, 20, 30, 40, 50]. Find G?

Penyelesaian:
  1. 1.Calculate cumulative income
  2. 2.Plot Lorenz curve
  3. 3.Calculate area
Hasil:G ≈ 0.267

A Gini value of 0.267 indicates relatively low inequality.

Pertanyaan yang Sering Diajukan (FAQ)

What does Gini = 0 mean?
Perfect equality — everyone has the same income.
What is Indonesia's Gini coefficient?
Based on national statistics, Indonesia's Gini ratio is approximately 0.38–0.39 (2023).

Kalkulator Terkait

Purchasing Power Parity

Purchasing power parity

Money Multiplier

Money multiplier

Referensi