Dirt Calculator
Calculate the amount of dirt (topsoil, fill dirt, or compost) needed for a given area. Enter dimensions and depth to get cubic yards and tons.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the Dirt Calculator
- Enter Length (ft) – Type the length of the area in feet (e.g., 10).
- Enter Width (ft) – Type the width in feet (e.g., 20).
- Enter Depth (in) – Type the depth in inches (e.g., 6).
- Select Material – Choose from Topsoil, Fill Dirt, or Compost.
- Click "Calculate" – The result shows cubic yards and tons, plus step-by-step math.
All inputs must be positive numbers. Depth is in inches, length and width in feet.
Previous Results
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Frequently Asked Questions
Measure the length and width of the area in feet, and the desired depth in inches. Our calculator will compute the volume and weight.
Topsoil is nutrient-rich for planting, fill dirt is used for grading and backfilling, and compost is organic matter for soil amendment. They have different densities affecting weight.
The weight estimate is based on average densities. Actual weight may vary due to moisture content and compaction. Always order a little extra.