You would have to know how deep the tank is.
About 7,100 gallons of water.
84.16 US gallons
It depends how deep it is.
how many a quarts of water hold
A 20 Gallon tank can hold up to 20 gallons of water.
Cannot be answered without knowing the depth.
3.246753 gallons
This pool can hold up to about 7,181 gallons of water.
length X width by avg depth x 4.5 if a rectangle
About 7,100 gallons of water.
it can hold anywhere from 750-1000 gallons of water
Approx 4788 US gallons.
84.16 US gallons
This pond can hold up to 533 gallons of water.
A rough (high) estimate will use the volume of a rectangle. 155.42 US gallons
about 5 gallons
Approx 1.88 gallons.