Social Development
Development
Calculators & Tools
Human Development Index (HDI) Calculator
The HDI Calculator computes the Human Development Index from life expectancy, mean and expected years of schooling, and GNI per capita using the official UNDP geometric mean formula. It breaks the result down into the Life Expectancy Index, Education Index, and Income Index, classifies the score into one of four UNDP tiers, and compares it against 20 countries using approximate 2022 Human Development Report data.
Social Mobility Elasticity Calculator
The Social Mobility Elasticity Calculator computes the Intergenerational Earnings Elasticity (IGE) from a list of parent and child income pairs using a log-log regression. It returns the IGE coefficient, the log-income correlation, and the rank-rank correlation preferred by modern mobility research, then classifies the result into a mobility tier and compares it against approximate IGE estimates for 18 countries.
Poverty Gap Index Calculator
The Poverty Gap Index Calculator computes the full Foster-Greer-Thorbecke poverty measures, P0, P1, and P2, from a poverty line and either a raw income list or grouped income brackets. It returns the headcount ratio, poverty gap index, and poverty severity index together, plus the total poverty gap, average gap per poor person, and income gap ratio, classified into a depth tier and compared against approximate World Bank estimates for 16 countries.
Gender Development Index (GDI) Calculator
The GDI Calculator computes the Gender Development Index by calculating a separate Human Development Index for women and men using sex-specific life expectancy goalposts, then dividing female HDI by male HDI. It classifies the result into one of five UNDP equality groups based on the deviation from perfect parity, and compares it against approximate 2022 Human Development Report data for 17 countries.
Relative Deprivation Index Calculator
The Relative Deprivation Index Calculator computes the Yitzhaki index from a list of incomes or grouped income brackets, both for each individual income level and as a population-wide aggregate. It returns the aggregate relative deprivation in currency terms and as a percentage of mean income, cross-checks the result against the Gini coefficient using the Yitzhaki identity, and breaks down relative deprivation by income level from poorest to richest.