🧱 Square Feet to Cubic Yards Calculator
Bulk materials like soil, mulch and concrete are sold by the cubic yard, but you usually know the area in square feet. Add the depth in inches and this calculator converts the flat area into orderable volume.
It returns cubic yards for ordering and cubic feet as a cross-check, so you can compare against supplier calculators or bag counts.
How to use this calculator
Enter the area in square feet and the depth in inches. The calculator returns the volume in cubic yards and cubic feet.
- Type the Area in square feet.
- Type the Depth in inches.
- Read the cubic-yard result — that is the amount to order.
- Check the cubic-foot figure to compare with supplier quotes.
Frequently asked questions
What does the Square Feet to Cubic Yards Calculator compute?
It turns a flat area and a depth into a volume. You enter square feet and depth in inches, and it returns cubic yards for ordering plus cubic feet as a check.
What is the formula behind it?
Cubic feet equal area times depth in feet (inches divided by 12). Cubic yards equal cubic feet divided by 27, since a cubic yard is 3 by 3 by 3 feet.
Can you give a worked example?
100 square feet at 3 inches deep is 25 cubic feet, which is 0.93 cubic yards — so you would order 1 cubic yard.
Should I order extra material?
Yes, ordering about 10 percent more than the calculated volume covers settling, spillage and uneven ground. Suppliers sell by the full cubic yard anyway.