Life expectancy in the world
Humanity
Life expectancy at birth in the world was 73.2 years in 2023, by the UN estimate, against 46.4 in 1950.
For women it was 75.9 years, for men 70.5.
Of every 1,000 babies born alive in 2023, 27.3 died before their first birthday. In 1950 it was 138.1.
Life expectancy at birth is a period measure. It sums up the death rates of one year and is not a forecast of how long the babies born that year will live.
Sources: World Population Prospects 2024, UN DESA Population Division (CC BY 3.0 IGO).
Questions and answers
What is the life expectancy in the world?
Life expectancy at birth in the world was 73.2 years in 2023, by the UN estimate: 75.9 for women and 70.5 for men. In 1950 it was 46.4.
Which country has the highest life expectancy?
Among countries of a million people or more, Hong Kong, with 85.5 years at birth in 2023, by the UN estimate. The lowest was in Nigeria, with 54.5 years. Some much smaller places rank higher in the full table.
Does life expectancy say how long a baby will live?
No. Life expectancy at birth is a period measure. It sums up the death rates of one year and is not a forecast of how long the babies born that year will live.
How many babies die before their first birthday?
Of every 1,000 babies born alive in 2023, 27.3 died before their first birthday, by the UN estimate. In 1950 it was 138.1.
Tools
Guides
- Period and cohort life expectancy: what the number really measuresWhy life expectancy at birth describes the death rates of one year rather than how long anyone will live, and how it differs from the life expectancy of a birth cohort.Read the guide
- Remaining life expectancy: why it is longer than you might thinkWhat remaining life expectancy at a given age means, why people who have reached an age can expect to live beyond the life expectancy at birth, and what the number does not say.Read the guide
Years up to 2023 are UN estimates. Later years are projections, the medium variant unless said otherwise. Methodology





