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
To convert 75 liters of bark mulch to pounds, you need to know the density of the mulch, which can vary. On average, bark mulch weighs about 20-25 pounds per cubic foot. Since there are approximately 28.3 liters in a cubic foot, 75 liters is about 2.65 cubic feet, translating to roughly 53-66 pounds of bark mulch.
To cover 260 square feet with 3 inches of mulch, you'll need about 0.75 cubic yards of mulch. Since 1 cubic yard equals 27 cubic feet, first convert the depth from inches to feet (3 inches = 0.25 feet). Then, calculate the volume: 260 sq ft x 0.25 ft = 65 cubic feet. Converting this to cubic yards, divide by 27: 65 cubic feet ÷ 27 = approximately 2.41 cubic yards. Therefore, you'll need about 2.5 cubic yards of mulch to achieve the desired coverage.
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)
To determine how many bags of mulch you need for a 16 square foot area, you first need to decide on the desired depth of the mulch. For example, if you want a 2-inch depth, you'll need about 2 cubic feet of mulch per square foot (since there are 12 inches in a foot, 2 inches is 1/6 of a foot). For a 16 square foot area at 2 inches deep, you would need approximately 32 cubic feet of mulch. Since each bag is 0.8 cubic feet, you would need 32 / 0.8 = 40 bags of mulch.
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.