How many cubic feet of dirt is needed to fill a 5 gallon container?

That could be anything from 0.4 to about 2 cu ft. - If i am vague that is because the term "dirt " is completely vacuous. - It could include sand, soil, clay, loam, gravel, peat, rock ,etc all of differing weights. - - Promise me you will never go to a landscape yard and ask for "dirt".