# Life Expectancy Index Calculator

Life expectancy is a statistical measure of the average time an organism is expected to live. Life Expectancy Index (LEI) is one of the indicators considered in the human development index of a country. LEI is 1 when Life expectancy at birth is 85 and 0 when Life expectancy at birth is 20. Here is a simple online calculator to calculate Life Expectancy Index. Just enter the Life Expectancy at birth in the specific field and get the result using this calculator.

Life expectancy is a statistical measure of the average time an organism is expected to live. Life Expectancy Index (LEI) is one of the indicators considered in the human development index of a country. LEI is 1 when Life expectancy at birth is 85 and 0 when Life expectancy at birth is 20. Here is a simple online calculator to calculate Life Expectancy Index. Just enter the Life Expectancy at birth in the specific field and get the result using this calculator.

Code to add this calci to your website

#### Formula:

LEI = (LE - 20) / (85 - 20)
**Where,**
LEI =Life Expectancy Index
LE = Life Expectancy

#### Example

**If the Life expectancy at birth is 30, then **

= (30 - 20) / (85-20)

LEI = 0.1538