What is this calculator?
This tool converts a volume measured in cubic feet (ft³) into cubic yards (yd³). It is handy for ordering bulk materials like concrete, topsoil, mulch, gravel, and sand, which suppliers usually sell by the cubic yard. The conversion is universal and applies anywhere imperial volume units are used.
How to use it
Enter the volume you have in cubic feet and the calculator instantly returns the equivalent in cubic yards. If you measured a space in feet (length × width × depth), multiply those three numbers first to get cubic feet, then enter that value here.
The formula explained
One cubic yard is a cube measuring 3 feet on every side: \(3 \times 3 \times 3 = 27\) cubic feet. So to convert any volume from cubic feet to cubic yards you simply divide by 27:
$$\text{Cubic Yards} = \frac{\text{Volume (ft}^3\text{)}}{27}$$
Worked example
Suppose you need to fill a garden bed that is 12 ft long, 6 ft wide, and 0.75 ft (9 inches) deep. The volume is \(12 \times 6 \times 0.75 = 54\) cubic feet. Dividing by 27 gives $$54 \div 27 = 2 \text{ cubic yards}$$ of soil to order.
FAQ
Why divide by 27? Because a cubic yard equals 27 cubic feet (\(3^3\)). It is a fixed conversion factor.
How do I go back from cubic yards to cubic feet? Multiply by 27 instead of dividing.
How many cubic yards is 100 cubic feet? \(100 \div 27 \approx 3.7\) cubic yards.
