Estimate loose aggregate volume and mass for a rectangular area.
Gravel Calculator
Form
Results
Volume needed
0
Weight needed
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Table of Contents
1
What is Gravel Calculator?
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How to Use This Calculator
- Enter or select Gravel type, 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; mass = volume × bulk density; cost = quantity × unit price.
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Variables Explained
| Input | What it means |
|---|---|
| Gravel type | Choose the applicable option; it determines which relationship or conversion the page applies. |
| 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
An area 5 m long and 4 m wide at 0.1 m depth needs 2 m³. At an assumed density of 1,600 kg/m³, that is 3,200 kg.
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Why Use This Calculator?
Use the geometric volume as a starting quantity, then check the supplier’s density and the project’s compaction or waste allowance.
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Common Mistakes
- Bulk density, moisture and compaction change purchase quantities. Convert depth to the same length unit used for the area.
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Frequently Asked Questions
Should I order exactly the calculated volume?
The result is the ideal geometric amount. Allow for site levels, compaction and handling losses using the actual material specification and supplier advice.
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.
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Sources & References
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