Calculate the volume of soil to excavate and the number of skip loads or truck loads needed.
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How to Use This Calculator
<h4>How to Use</h4><ol><li>Enter the excavation area dimensions (length, width, depth).</li><li>Adjust the swell factor – soil expands 20–40% when dug out.</li><li>Review the bank volume, loose volume, and truck/skip loads.</li></ol><h4>Swell Factors</h4><ul><li>Sand/gravel: 10–15%</li><li>Common earth/topsoil: 20–30%</li><li>Clay: 30–40%</li><li>Rock: 40–70%</li></ul>
Common Questions
What is swell factor?
When soil is excavated, it breaks apart and occupies more space than when compacted in the ground. The swell factor accounts for this increase – typically 20–30% for common soil.
How much does a dump truck hold?
A standard dump truck holds about 10 cubic yards (7.6 m³). Larger trucks can carry 14–18 cubic yards.
How much does excavated soil weigh?
Loose soil typically weighs 1.1–1.5 tons per cubic yard (1.3–1.8 tonnes per m³) depending on moisture and soil type.