Here’s a little help figuring out
how much compost you’ll need.

There are 27 cubic feet in a cubic yard; visualize a 3 foot by 3 foot area and 3 foot tall.

One cubic yard of compost will cover 100 square feet, 3 inches deep.
10’ x 10’ = 100 square feet

Multiply the length of your area by the width to get the number of square feet.
length x width = square feet

Take the square feet of your area and times by the number of inches deep you want
the compost and divide by 324; this will give you the number of cubic yards to buy.
10’ x 10’ = 100 ft x 3” = 300 / 324 = .93 cu yd.

Area of a circle is determined by taking the radius (middle of circle to outer edge)
squared and multiplying that number by 3.14;
then apply same formula as above for figuring cubic yards.
area = radius x radius x 3.14