water

The area of the world’s ocean is 361 million square kilometers, its volume is approximately 1,300 million cubic kilometers, and its average depth is 3,790 meters.

The total mass of all the water on the planet is about 1.4x1021 kilograms, which is about 0.023% of the earth’s total mass.

Less than 2% is fresh water; the rest is saltwater, mostly in the ocean.