Estimate the in-place volume of a rectangular excavation.
Excavation Calculator
Form
Results
Total Volume of Excavation
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Table of Contents
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What is Excavation Calculator?
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How to Use This Calculator
- Enter or select Length, Width, Depth.
- Check the unit beside each measurement. For a percentage or rate, use the scale and time period stated in the form.
- Choose Calculate, then compare the output with the formula and example below. If you change a value or option, calculate again to update the result.
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Formula Used
Volume = length × width × depth
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Variables Explained
| Input | What it means |
|---|---|
| Length | The measured end-to-end distance of the section being calculated. |
| Width | The crosswise measurement, perpendicular to the length. |
| Depth | Thickness or downward measurement of the layer or space. |
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Worked Example
A trench 10 m long, 0.5 m wide and 1 m deep has volume 5 m³.
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Why Use This Calculator?
Use the result to put measurements on a common basis before comparing them or estimating quantities. The original measurement precision still limits the precision of the answer.
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Common Mistakes
- Excavated loose material can occupy more volume than soil in place; side slopes also add volume.
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Frequently Asked Questions
When should I round a measurement?
Carry the measured values and conversion factors through the calculation first. Round the final result to a precision justified by the original measurements.
Why can a supplier’s quantity differ?
Measurement conventions, nominal sizes, density assumptions and purchase rounding can change a practical quantity. Compare the units and assumptions before comparing the numbers.
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Sources & References
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