Fill Dirt Calculator
Calculate the amount of fill dirt needed for a rectangular area based on length, width, and depth.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the Fill Dirt Calculator
This calculator estimates the volume of fill dirt needed in cubic yards. All measurements must be in feet (length and width) and inches (depth).
- Enter Length (ft) – Type the length of the area in feet (e.g., 20).
- Enter Width (ft) – Type the width in feet (e.g., 10).
- Enter Depth (in) – Type the desired depth in inches (e.g., 6).
- Click "Calculate" – The result shows cubic yards, with a breakdown of the formula.
Note: All inputs must be positive numbers. The calculator converts depth from inches to feet, then divides by 27 to get cubic yards.
Previous Results
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Frequently Asked Questions
Volume is calculated by multiplying length (ft) by width (ft) by depth (ft). Depth is converted from inches to feet by dividing by 12. The result in cubic feet is then divided by 27 to get cubic yards.
Length and width are in feet, depth is in inches. The result is in cubic yards.
This calculator is designed for rectangular areas. For irregular shapes, divide the area into rectangles and calculate each separately, then sum the volumes.