If the Noachian flood waters covered the tallest mountain (Mount Everest, about 5 miles) there would have five miles of water over the surface of the earth. The earth's radius is about 4,000 miles. To calculate the volume of the flood waters, we calculate the volume of a sphere (V = 4pR3/3) whose radius R2 = 4005 miles, and subtract the volume of a sphere whose radius if R1 = 4,000 miles. The difference is the volume of the flood waters. Next, we calculate the radius of a sphere which would contain the flood waters.
The calculations are shown below:
