How Many People Have Ever Lived on Earth?

Back in the 1970s, a now-forgotten writer claimed that 75 percent of the people who had ever been born were alive at that moment. This 'factoid' has been referenced many times, even though a bit of reflection would show how unlikely it is.

So, what might be a better estimate of the actual percentage? In this video, a Population Reference Bureau scholar explains how to get a reasonable guesstimate.



 Find out more.

Here is an infographic look at the data.


Learn the total number of people who have ever lived on Earth, in today's GoFigure infographic.


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