1 cubic yard equals 27 cubic feet. At a six inch depth 1 cubic foot will cover 2 square feet, so 27 cubic feet will cover 54 square feet.
1 cubic yard covers 27/depth in feet square feet.
it will cover 3 cubic feet, or 9 feet, I am not sure how many square feet
200 cubic feet or 7.4 cubic yards
744 Square Feet
To find the volume in cubic feet needed to cover 21,000 square feet, you would also need the height of the coverage area. The volume (cubic feet) is calculated by multiplying the area (square feet) by the height (feet). Without the height, it's not possible to determine the amount of cubic feet needed to cover 21,000 square feet.
1 cubic yard equals 27 cubic feet. At a six inch depth 1 cubic foot will cover 2 square feet, so 27 cubic feet will cover 54 square feet.
1 cubic yard covers 27/depth in feet square feet.
it will cover 3 cubic feet, or 9 feet, I am not sure how many square feet
Here's the formula: 27 cubic feet = 1 cubic yard. 1 cubic yard will cover 324 square feet at a depth of 1 inch. 2000 square feet divided by 324 square feet = 6.2 yards (rounded). Another approach: 7 cubic yard X 324 square feet = 2268 square feet of coverage at a depth of 1 inch.
200 cubic feet or 7.4 cubic yards
A 1 cubic foot bag will cover 12 square feet at a depth of 1" A 1.5 cubic foot bag will cover 18 square feet at a depth of 1"
744 Square Feet
3 inches = .25 feet400 square feet X .25 feet = 100 cubic feet100 cubic feet / 27 cubic feet per cubic yard = 3.7 yards
One cubic yard of mulch will cover approximately 160 square feet at 2" deep, so you would need approximately two cubic yards of mulch to cover 271 square feet at 2" deep.
800 square feet x 1/12 x 3/4 = 50 cubic feet.
28 cubic feet (1.037 cubic yard, rounded)