Expectativa de Vida Média
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
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About this calculator
The Expected Life Expectancy Calculator is a useful tool for ecologists and biologists working with organism populations. It calculates the mean life expectancy of a population based on the age and survival probability of each individual.
The underlying formula for this calculator is based on population demographic theory, which studies the dynamics of population growth and decline. Mean life expectancy is an important measure to understand the health and reproductive potential of a population.
This calculator is particularly useful when working with populations that have high or low mortality rates, or when comparing the life expectancy of different populations. Additionally, it can help identify factors affecting the longevity of a population, such as environmental conditions or predators.
Frequently asked questions
What is mean life expectancy?
Mean life expectancy is a measure of the average age an individual can reach in a population, considering the probability of survival over life.
When to use this calculator?
This calculator is useful for ecologists and biologists working with organism populations and need to calculate mean life expectancy based on individual age and survival probability.
How does this calculator work?
This calculator uses the formula Σ(xᵢ·pᵢ), where xᵢ is individual age and pᵢ is survival probability.
What are the precautions to take when using this calculator?
It is essential to ensure that age and survival probability information is accurate and up-to-date to obtain reliable results.