How Many Humans Have Ever Lived?

The short answer: far more than one hundred billion humans have been born over human history. The commonly cited estimate is around 117 billion.

117 billionever born

8+ billionalive today

about 7%alive share

Why this is an estimate

Most of human history has no complete records. Researchers combine historical population estimates with assumptions about birth rates and mortality.

It puts today’s population into perspective. The current generation is very large, but most humans who ever lived are no longer alive.

The value is a plausible order of magnitude, not an exact count. Different models can produce different totals.

Is 117 billion exact?

No. It is a model estimate.

What share is alive today?

Roughly seven percent, using the 117 billion estimate.