That's 13 cubic yards of mulch for every 2 inches deep.
The 'square feet' of area that it covers is 1,620/(depth of the mulch, in inches)
About a 1,944 square foot area at 2" depth of mulch. Roughly equivalent to 12 parking spaces.
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.
This question needs to give what dimension the 16 x 12 is. Is it feet yards or metres.
13.333 square yards.
You will need at least 32 square yards of carpet to cover that area.
At least 622.2 square yards of sod are needed to cover that area.
1 yard of mulch at 12 inches deep would cover 25 sq. ft., so for 400 square feet you would need 16 yards. 12 inches is the depth you need to start with because the mulch will settle.
133.3 cubic feet
Covert all your measurements into yards: 12 ft = 4 yds (as 1yd = 3 ft) Calculate the area of the base of the pile of mulch; assuming a square base: 4yds x 4yds = 16 sq yds Measure the height of your pile of mulch in yards. If the pile of mulch is cuboid in shape, multiply this height by the area of the base (as previously calculated). If the pile of mulch is pyramidal in shape, multiply this height by the area of the base and divide by 3.
25.33 yards
It depends on how thick you want to apply it.