How much water is on Earth?

"Viewed from space, the most striking feature of our planet is the water. In both liquid and frozen form, it covers 75% of the Earth’s surface. It fills the sky with clouds. Water is practically everywhere on Earth, from inside the rocky crust to inside our cells."
https://earthobservatory.nasa.gov/images/46209/the-water-planet

"The Earth is a watery place. But just how much water exists on, in, and above our planet? About 71 percent of the Earth's surface is water-covered, and the oceans hold about 96.5 percent of all Earth's water."
https://www.usgs.gov/special-topic/water-science-school/science/how-much-water-there-earth?qt-science_center_objects=0#qt-science_center_objects

"The total volume of water adds up to about 332,500,000 mi3"
https://www.worldatlas.com/articles/how-much-of-the-earth-is-water.html

"There's a whole lot of water on Earth! Something like 326,000,000,000,000,000,000 gallons (that's 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 about 12,100 feet (3,688 meters)."
https://science.howstuffworks.com/environmental/earth/geophysics/question157.htm

"How much water is that? It's roughly 326 million cubic miles (1.332 billion cubic kilometers), according to a recent study from the U.S. Geological Survey."
https://www.livescience.com/29673-how-much-water-on-earth.html

Water - Blue Gold World Water Wars