Graphic shows entire amount of water on Earth.
If you took all of the water on Earth and (somehow) made it into a sphere, it would be 1,385 kilometers in diameter, with a volume equal to about 1,386 million cubic kilometers.
By comparison, the Earth measures a staggering 12,256 km in diameter, dwarfing the little blue sphere — a “little blue sphere” that contains more than enough water to cover over 70 percent of our planet’s surface, and fill every life form on Earth with H2O molecules. (Those looking for a similar size comparison at home can use a basketball to represent the dry Earth, and a nickel to illustrate the diameter of our water sphere.)
