Measure the length in feet
Measure the width in feet
Measure the height or depth in feet
Multiply length × width × height to get cubic feet
Divide the cubic feet by 27 to get cubic yards
For irregular shapes, break the area into smaller sections
Measure each section separately
Add the cubic feet from all sections
Divide the total by 27 to get cubic yards
For circular areas, use the radius and depth to find cubic feet
Divide the result by 27 to convert to cubic yards