625 qubic feet
Square feet have dimensions L2 while cubic feet have dimensions L3 so they are not interchangeable.
"Hectare" is a unit of area. It has no qubic meters in it.
Square feet are a measure of area, feet are a measure of length. They are not comparable.
None: I measure them in metres. But people did measure rooms, for example, in feet.
You can't compare square feet with cubic meters because they're two different types of units. Square feet measure area while cubic meters measure volume.
625 qubic feet
You can't.
What is a Qubic litre? A litre is a measure of volume - with dimensions [L3]. A cubic litre (if that is what it is meant to be) would then be a "volume" measure in 9-dimensional space!
There are 27 cubic feet in a cubic yard.
Square feet have dimensions L2 while cubic feet have dimensions L3 so they are not interchangeable.
"Hectare" is a unit of area. It has no qubic meters in it.
In earth-moving or landscaping terms (which is where the term yard as in volume comes from) 1 yard is actually an abbreviation for 1 cubic yard.
0.0765 pounds per qubic foot
There are no feet in two hundred cubic feet. That's like asking how many inches are in a gallon. Feet are a measure of length or distance. Cubic feet are a measure of volume. You can't measure volume in feet. And you can't measure distance in cubic feet.
Square feet are a measure of area, feet are a measure of length. They are not comparable.
None: I measure them in metres. But people did measure rooms, for example, in feet.