It depends how deep you want it.
Half a cubic foot.
100 cubic foot bags.
One cubic yard will cover a 324 square-foot area with one inch of mulch. However your mulch should be 2 to 3 inches thick to maintain moisture and prevent weed growth. Be careful not to go to thick or you will cause mold to form in the mulch.
226.875
13.5 bags are required.
When you say a yard, you are actually saying a cubic yard. If you were to place the much in a 3 foot high by 3 foot wide by 3 foot tall cube, it would exactly fill the cube. How much it covers depends on how deeply you spread it. Since you should spread it at a dept of no less than 4 inches, it should cover about 20 square feet. If you spread it deeper than that, it will of course, cover less area.The 'square feet' of area that it covers is 324/(depth of the mulch, in inches)
The area covered by one cubic yard of Mulch is dependant on the depth that themulch is applied. At 3" it covers 108 ft2, at one inch it covers over 300 ft2.The 'square feet' of area that it covers is 324/(depth of the mulch, in inches)
3 inches = 1/4 footVolume = (308 x 1/4) = 77 cubic feet.That's (77/2) = 38.5 bags
You have three dimensions here 5.5 x 5 x 1.5 which means you are looking for cubic feet. The answer is 41.25 cubic feet.
About a 1,944 square foot area at 2" depth of mulch. Roughly equivalent to 12 parking spaces.
Technically, none. A square foot is a measure of area whereas it is the volume of water that is required. To convert from area to volume it is necessary to know the depth. A twelfth of a cubic foot will cover an area of one square foot to a depth of 1 inch. A cubic foot will cover it to a depth of 1 foot, 100 cubic feet will cover it to a depth of 100 feet.
Roughly about 30 pounds per cubic foot, so 2 cu ft is about 60 pounds