1,468 US gallons.
300 cubic feet = 2,244.156 gallons (rounded)
There are 3 cubit feet in 1 cubit yard. Although irrelevant in this context, you may wish to know that 1 cubit = 1.5 feet = 0.5 yards.
1 cubit = 1.5 feet
Many.
1 cubic foot = 7.48051945 US gallons
512 feet squared
If the tank has a capacity of 27 cubic feet, then that capacity may be expressed as 201.97 gallons.However, we have no way of knowing how much water is in it, if any.
2000 square feet = 1333.33... (recurring) square feet.
One cubit = 1.5 feet so a cubit foot is a measure of area in 2-dimensional space. An area has no mass. You need to have a thickness before you can have a volume and therefore, a measure of mass.
If you meant "cubic yard," then there are 27 cubic feet in 1 cubic yard. If you meant "cubit yard," then there is no such measurement. However, one cubit is equal to 1/2 yard, which is equal to 1 and 1/2 feet.
"cubit feet" is nonsense; there's no such measurement. "cubic feet" is a valid unit of measurement, but it's a volume measurement and cannot be converted into pounds, a weight measurement.
Square feet are a measure of area. A square is a flat thing with no vokume. Cubit feet don't exist. Cubic feet are a measure of volume. There is no way of expressing a volume in units of area.