How much water would it take? The total volume of water on Earth is about 1.4 billion cubic kilometers
Volume of a sphere = 4/3 pi r3 where r=radius
Radius of Earth = 6,378.15 Kilometers
Height of Mt. Everest = 8.85 Kilometers
The volume of water needed to cover Earth to the height of Mt. Everest is approximately the difference in volume of a sphere needed to encompass Mt. Everest and the volume of a sphere the size of the Earth.
Volume of a sphere encompassing the Earth at sea level
= 4/3 pi (6,378.15 KM)3 = 1,086,825,918,019 KM3
Volume of a sphere encompassing Mt. Everest
= 4/3 pi (6,378.15 + 8.85 KM)3 = 1,091,388,460,971 KM3
The Difference = 4,530,488,766 KM3
Notice that this is more than
3 TIMES the amount of water presently on Earth.