http://www.havuz.org/pool-calculators.htm 1809
Approximately 4,400 gallons.
if it's 4 ft deep 21,139.948 gal.
The volume of the pool is 1385.45 cu ft for a maximum capacity of 10,364.5 gallons of water.
About 7,650 gallons.
50
That depends on what body of water you are swimming into. In most cases, swimming in a deep river or deep lake can get you drowned in the water because it is so large and unclear. If it is a pool, then it is ok because you can see clearly and a lot of athletics can swim in pools as much as 50 ft deep.
48 what deep? Inches, miles, etc.
About 6,042 gallons of water.
About 3,758 gallons.
A 20 foot round pool has a radius of 3.2 feet. So the pool has a volume of pi*r2*h = 101.86 cubic ft approx.
About 4,490 gallons of water.
About 2,794 gallons of water.