The Ledger · Entry 07

A person born today can expect to live far longer

Life expectancy at birth, worldwide, in years

28.5 in 1770
73.2 in 2023

Data: Our World in Data, based on UN World Population Prospects and others

A global life expectancy in the twenties does not mean people dropped dead at thirty; it means so many children died that the average was dragged down hard. As child deaths fell and adults gained decades from clean water, medicine, and better food, the average more than doubled.

Period life expectancy at birth, 1770 to 2023: from 28.5 to 73.2. Source: Our World in Data, based on UN World Population Prospects and others. 28.5 1770 46.4 1950 73.2 2023
Source: Our World in Data, based on UN World Population Prospects and others · CC BY 4.0 · retrieved 2026-07-02. Underlying data: UN World Population Prospects (2024); Riley (2005) and Zijdeman et al. for historical years.

The key rows

1770 28.5 Life expectancy in the twenties, worldwide.
1950 46.4 The great acceleration underway.
2021 70.9 The pandemic dip, a real setback.
2023 73.2 Recovered and rising again.

It is not a straight line. The pandemic pulled the number down in 2021 before it recovered, and the long trend still rises.

Asked often

What is global life expectancy?

About 73.2 years at birth as of the latest estimate, up from roughly 28.5 years in 1770.

Did life expectancy fall during the pandemic?

Yes. The global figure dipped to 70.9 years in 2021 during the pandemic, then recovered to 73.2 years, above its pre-pandemic level.

The world also got better today.

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