How Many Atoms Are There In The World?


Earlier today I received a reader-submitted question from Bryan in New York. He asks, “How many atoms are there on Earth?”

Whether purposefully or not, Bryan has asked a very difficult question, and one that is nearly impossible to answer exactly. But, thanks to science, we can estimate.

According to the US Department of Energy’s Jefferson Lab, the answer is:


That answer comes from an estimation of the number of atoms in each of Earth’s elements, like Iron, Oxygen, Silicon, Magnesium, Sulfur … etc. Adding them all together, we get a number that works as an estimate.

Have a burning question that you’d like answered? Fire away:

19 Comments on How Many Atoms Are There In The World?

  1. Avengers Fan // June 14, 2014 at 6:43 pm // Reply

    That’s alot

  2. Joss€£¥ // June 17, 2014 at 5:46 am // Reply

    Boys life is awesome !!!$!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  3. DribbleBot // June 17, 2014 at 9:11 am // Reply

    Wow. i thought there would be a lot more.

  4. wow

  5. that is so freakishly awesome!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  6. purple bird // June 18, 2014 at 6:45 pm // Reply

    Well, as Asap Science says, theeeeeeeeere’s hydrogen and helium and lithium, berillium, boron, carbon everywhere, nitrogen all through the air, oxygen for you to breathe and flourine for your for pretty teath, neon to light up those signs, sodium for salty times.

  7. seriously, my jaw dropped!!

  8. that only a little bit i agree with you dribblebot

  9. also i think its a lot and not a lot at the same time

  10. wow

  11. Really no way

  12. Anonymous // May 12, 2015 at 4:04 pm // Reply


  13. rim tim Tim 22 - 1 // July 13, 2015 at 11:26 am // Reply

    I believe there is much more…

  14. Anonymous // May 17, 2016 at 7:53 am // Reply


  15. God of Intelligence // November 23, 2016 at 1:26 pm // Reply

    I actually agree, because each type of atom has different mass. Just like each type of virus, bacteria etc. has a different mass.

  16. There are more ways to shuffle a deck of cards than atoms on earth😱

  17. Albert Einstein // December 28, 2016 at 7:58 am // Reply

    It would be many more if they count all atom in the hubble deep field

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