How many gallons of water are there on earth ?

Question

Including lakes, rivers, oceans, streams, and clouds.

Answer 1

There's a whole lot of water on Earth! Something like 326,000,000,000,000,000,000 gallons (326 million trillion gallons) of the stuff (roughly 1,260,000,000,000,000,000,000 liters) can be found on our planet. This water is in a constant cycle -- it evaporates from the ocean, travels through the air, rains down on the land and then flows back to the ocean.

The oceans are huge. About 70 percent of the planet is covered in ocean, and the average depth of the ocean is several thousand feet (about 1,000 meters). Ninety-eight percent of the water on the planet is in the oceans, and therefore is unusable for drinking because of the salt. About 2 percent of the planet's water is fresh, but 1.6 percent of the planet's water is locked up in the polar ice caps and glaciers. Another 0.36 percent is found underground in aquifers and wells. Only about 0.036 percent of the planet's total water supply is found in lakes and rivers. That's still thousands of trillions of gallons, but it's a very small amount compared to all the water available.

The rest of the water on the planet is either floating in the air as clouds and water vapor, or is locked up in plants and animals (your body is 65 percent water, so if you weigh 100 pounds, 65 pounds of you is water!). There's also all the soda pop, milk and orange juice you see at the store and in your refrigerator… There's probably several billion gallons of water sitting on a shelf at any one time!

Answer 2

The earths SURFACE is made up of about 75% of the SURFACE AREA of the Earth. The atmosphere which is about 60 MILES high is FULL of water ALL OF THE TIME. AS you get higher it is much thinner of course. The oceans depths vary from around 5miles to nothing at beaches. You would need one HELLUVA calculus equation to come close to estimating this, OR, you could ask NASA who probably have ALL the DEPTHS including TOTAL OCEANIC AND LAKE VOLUMES OF THE PLANET, plus the TOTAL VOLUME OF AIR AROUND THE EARTH. I am sure that the answer is somewhere, but I would START with NASA.....
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Answer 3

no one can answer this question. not all water on the planet has been found and the amount increases each day. a result of burning natural gas. a molecule of methane (natural gas) produces 1 molecule of co2 and two molecules of h2o.

Answer 4

there is 90% of water on earth
land is about 50%

Answer 5

You have got to check this site out.

http://ga.water.usgs.gov/edu/earthhowmuch.html

Answer 6

I'll start counting and let you know as soon as I finish.

Answer 7

only here in the US, everywhere else theyre litres

Answer 8

a lot