How Much Does A Cloud Weigh?


Have you ever wondered how much a cloud weighs?

Because they float so effortlessly, it would be easy to assume they are almost weightless. But, they are most certainly not.

According to scientists, the weight of the average cumulus cloud is 1.1 million pounds! Think about that for a moment. This means that at any given moment, there are millions of pounds of water floating above your head. That’s the equivalent of 100 elephants.

So, how does that much weight stay afloat? For one thing, the weight is spread out into millions of droplets over a really big space. Some of the droplets are so small that you would need a million of them to make a single raindrop.

How much would you have guessed a cloud weighed? Want to learn more about how scientists came up with the weight? Head over to Mental Floss for more on this cool story.

47 Comments on How Much Does A Cloud Weigh?

  1. I would of thought it was 0.00000001 oz., but it isn’t!

  2. body steeler // June 10, 2013 at 7:47 pm // Reply

    think its zero and bam the world is more complicated

  3. Yes but does it have an edge?

  4. limegreen lover // October 25, 2014 at 1:24 pm // Reply

    I can’t belive that it weighs 1.1 million pounds. WOW!

  5. How much water is in the atmosphere around the entire globe?

  6. I’m not quite sure if I believe that lol but it is kinda cool!

  7. give more information

  8. helpless water // May 8, 2015 at 6:03 pm // Reply

    That is 157500 gallons of water floating over Head

  9. helpless water // May 8, 2015 at 6:04 pm // Reply

    That is 157500 gallons of water

  10. Chicken135 // May 18, 2015 at 7:38 pm // Reply

    Awesome. I didn’t know that a cloud weighed that much. By the way, I like chicken

  11. Awesome. I didn’t know that a cloud could weigh that much. By the way, i like chicken

  12. Well, there is 3.5896421501278e+20 (358,964,215,012,780,000,000 (358 quintillion)) gallons of water on Earth. So I would say that there could be as much as double that, or less then half of that, in the atmosphere of the entire planets atmosphere. (MATH) A cubic mile is equivalent to 147,197,952,000 (147 billion) cubic feet. Water weighs exactly 62.42718356 pounds per cubic foot. At said rate, a cubic mile of water would weigh 9.1891535691601e+12 (9,189,153,569,160.1) pounds. The total amount of water on the earth is about 326 million cubic miles of water. The total weight of Earths water would be 2.9956640635462e+21 (2,995,664,063,546,000,000,000 (2.995 sextillion)) pounds. One gallon of water weighs 8.3453 pounds. This means there is 3.5896421501278e+20 (358,964,215,012,780,000,000 (358 quintillion)) gallons of water on Earth.

  13. WHAT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  14. Cool


  15. Not to sure I believe that. Is there actually an average cloud size. Look at them on an overcast day. None are the same or even that similar in size. Clouds appear to be random in size. And a cumulus cloud isn’t exactly a rain cloud. How much does a full blown cumulonimbus weigh?

  16. yea but how do you weigh it???

  17. Minecrafter #1 // June 2, 2015 at 1:51 pm // Reply

    It is cool that a cloud can weighs 1.1 million pounds! But why and how do they get that weight? I know they have water in them but that does not seem enough! Please reply I need answers!

  18. Awesome pants // June 12, 2015 at 6:47 pm // Reply

    That’s cool 😁😔😔😔😰😥😛😃😔😉😉😉😀😀😀😀😄😃😀😃😃😃😃😃😃👟👒🙇👒

  19. Beanerfromacrossthestreet // June 17, 2015 at 12:26 am // Reply

    So if a cloud fell on me would I die?

  20. grim reaper // June 22, 2015 at 1:06 pm // Reply

    wow i never new that

  21. So when there’s fog why don’t our things get crushed?😯

  22. Awesome!!!!!!

    • because the weight of the water vapor is spread out over such a large surface the weight on a small area (I.e that of a house) is practically nothing, whereas the total weight of all the water vapor in that area combined is pretty huge.

  23. That’s quite somethin…

  24. wow

  25. The most surprising thing is that it floats!

  26. I hope that it dose not fall on us one day. And that is so cool that a cloud weighs more than a cow ,boat, horse, and your regular teen football player. And I have a to ask you guys something . How did you figure out how much a cloud weighed and how long did it take for you to figure is out. How many days dose it take to find out how much it weighed? By: Kyla Leysath

  27. fuffy bunny // August 17, 2015 at 9:35 am // Reply

    It dose not weigh nothing if it weigh 1.1million a cloud would be on the ground.So spend another year on this and I may be young but clouds would be on the ground so good luck.

  28. abrbownnaapp // August 17, 2015 at 1:41 pm // Reply

    A cloud weighs nothing if it weigh any thing all clouds would be on the ground so you all need to spend a little bit more time on this rain may be in a cloud but rain will and will never bring a cloud down

  29. clouds weigh less than air. so they float until the water droplets form raindrops. if all the humidity or water was removed from the air and spread evenly over the entire earth it would cover the earth with about 2 inches of water. since the avg cloud weighs 1.1 million lbs that means air is actually really heavy as well. that is why it doesn’t float into outer-space.

  30. Now i do believe that a cloud can weight 1.1M pounds. I mean.. when you think about it, water is pretty heavy. When you add more and more water it can be seriously heavy. Try full up a big bucket or something with water and KABLAM. Its pretty heavy ;_;

  31. If the average cloud weight is 1.1 million pound, how why does it defy Gravity?

    • Even though most clouds are very heavy, the weight is spread out for miles in the form of tiny water droplets or crystals. Those droplets of water are so small that the effect of gravity on them is negligible. That’s why clouds seem to float in the sky.

  32. fake fake fake >:( >:( >:(

  33. And, all this time I believed GOD keept them hanging up there?

    • Well, it is mentioned by God in the Quran that clouds are heavy.

      “He it is Who shows you the lightning causing fear and hope and (Who) brings up the heavy cloud.” Quran 13:12

  34. I believe cloud have weight and in the matter how it float, maybe because it formed by tiny droplet of water, so hot air/heat pressure lifting them up to the sky (the same way to how birds take advantage of heat air pressure to float without flapping their wings)

  35. I would, love to have these for my little one’s!

    Even though most clouds are very heavy, the weight is spread out for miles in the form of tiny water droplets or crystals. Those droplets of water are so small that the effect of gravity on them is negligible. 

    See! I, didn’t. Know! That!
    Love! Ya.

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