The Human Development Index (HDI) is a comparative measure of life expectancy, literacy, education, standards of living, and quality of life for countries worldwide.
It is a standard means of measuring well-being, especially child welfare. It is used to distinguish whether the country is a developed, a developing or an underdeveloped country, and also to measure the impact of economic policies on quality of life.
HDI is measured between 0 and 1. The Netherlands has an HDI of 0.910 whereas Kenya has an HDI of 0.509. And Chad has an HDI of 0.328.