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Simply put, total fertility rate is the average number of children a woman would have if a she survives all her childbearing (or reproductive) years. Childbearing years are considered age 15 to 49. The total fertility rate can be calculated using age-specific birth rates.
The total fertility rate (TFR) of a population is the average number of children that are born to a woman over her lifetime, if they were to experience the exact current age-specific fertility rates (ASFRs) through their lifetime, and they were to live from birth until the end of their reproductive life.
This topic page focuses on the fertility rate — formally known as the “total fertility rate” (TFR) — a metric that is expressed in the number of children per woman, and summarizes fertility rates across all age groups in one particular year.
Total fertility rate is directly calculated as the sum of age-specific fertility rates (usually referring to women aged 15 to 49 years), or five times the sum if data are given in five-year age groups.
The total fertility rate (TFR) is a more direct measure of the level of fertility than the crude birth rate, since it refers to births per woman. This indicator shows the potential for population change in the country.
Fertility rate, average number of children born to women during their reproductive years. For the population in a given area to remain stable, an overall total fertility rate of 2.1 is needed, assuming no immigration or emigration occurs. It is important to distinguish birth rates—which are defined.
The total fertility rate (TFR) is a demographic measure that estimates the average number of children a woman will have during her reproductive years, typically defined as ages 15 to 49.
Definition: The average number of children a hypothetical cohort of women would have at the end of their reproductive period if they were subject during their whole lives to the fertility rates of a given period and if they were not subject to mortality. It is expressed as children per woman.
Definition. The total fertility rate in a specific year is defined as the total number of children that would be born to each woman if she were to live to the end of her child-bearing years and give birth to children in alignment with the prevailing age-specific fertility rates.
Definition. The total fertility rate (TFR) is a demographic measure that estimates the average number of children a woman would have over her lifetime, assuming she experiences the exact current age-specific fertility rates throughout her childbearing years.