For 2 feet deep, you need 230 cu. yds (3100 x 2) / (27) For 2 inches deep, you need 19 cu yds
40.1 cubic yards
3880 cubic yards
1.19 Cubic Yards
2.37 cubic yards of dirt is needed to fill an 8'X4' that is 24" deep garden box. If the box is filled 12 inches, the amount of soil needed is 1.19 cubic yards and that should be deep enough for most vegetables.
100' x 1"= 100 sq ft. x 4" deep= 33.3 CUBIC feet. That is about 1.24 cubic yards.
3100 x 5/12 = 1292 cubic feet Since one yard = 27 cu ft, you need about 1292/27 = 48 yards
You already have a square yard of topsoil, so how does 20 inches of depth get you the volume of topsoil? There are 36 inches in a yard, and you have 20 inches of topsoil depth that's 20/36ths of a yard of topsoil depth. That's 0.555... or about 0.56 yards. The volume of topsoil is 1 yard by 1 yard by 0.56 yards, or about 0.56 cubic yards of topsoil.
You would need 31.88 cubic yards of topsoil to cover 855 sq feet at 6 inches deep.
14.8 yards
if that is 3 ft deep it would require 96 yards... IF it is 3 inches deep it would require 24 cubic yards
It takes 5.0926 cubic yards or 137.5 cubic feet.
40.1 cubic yards
3880 cubic yards
You'll need about 28.704 cubic yards (37 tons) of gravel.
1.19 Cubic Yards
123.44 cubic yards
Well, isn't that a happy little question! To find the volume of topsoil used, we first need to convert the depth from inches to yards. Since 1 yard is equal to 36 inches, 3 inches is 3/36 = 1/12 yards. Then, we multiply the area of the garden by the depth of the topsoil to find the volume. So, 24 yards (area) multiplied by 1/12 yards (depth) equals 2 cubic yards of topsoil used. Happy gardening!