Life in Numbers · Humanity
From a few million to eight billion
Trace the estimated population of humanity from 10,000 BCE, then follow the UN medium projection through 2100.
01 · 10 000 BCE — 2023
Humanity across twelve thousand years
Early figures are historical estimates, not a census. A logarithmic scale keeps the first millennia visible beside the modern population boom.
02 · The world in your lifetime
The world in your lifetime
Choose a birth year to compare the world's population then and in 2024.
03 · EVERYONE BEFORE US
How many people were born before you?
This is an approximate demographic reconstruction: censuses did not exist for most of human history.
Basis: the Population Reference Bureau estimate of about 117 billion births by 2022. Simple interpolation is used between benchmarks, so read this as scale—not an exact counter.
04 · THE BILLIONS
When did each new billion arrive?
The closer the points, the faster population grew. Nine and ten billion are crossings of the UN medium projection, not events that have happened.
05 · 2024—2100
The next 76 years
The UN medium projection rises to a peak in the mid-2080s, then eases slightly. It is a demographic projection, not a certainty.
UN WPP 2024medium scenario
2024205020842100
06 · Sources and limits
Sources and limits
Historical estimates combine HYDE and Gapminder; 1950 onward and the medium projection use UN World Population Prospects 2024, distributed by Our World in Data.
The official series stops at 2100, so this page does not disguise a guess beyond it as a UN forecast.