The volume enclosed by the tank is equivalent to 3,590.65 gallons (rounded).
We have no way of knowing how much water may be in it, or whether it's utterly empty.
There are 907.9202769 feet2 of water, but you will have to convert that into gallons.
13,464.94 US gallons.
Approx 4892 Imperial gallons.
4745 gallons Best estimate I have.
Not enough information. If it is a rectangular shape, you need to multiply length x width x height. The answer will be in cubic feet, which you would then have to convert to gallons (which is a great example of the benefits of the SI).
A tank this size can hold a maximum of 3,590.65 US gallons of water.
29,610.94 gallons (rounded)
11,669.61 (rounded)
need to know the width of the tub as well.
3.35 feet 18 x 18 x 3.35 x 5.9 = 6403 gallons
If the container is 3ft x 3ft x 9ft, the answer is 81 cubic ft. There are approximately 607.5 gallons of water.
Approximately 201 gallons.