Gravel Calculator
Work out gravel volume and weight for an area and depth.
Quick answer: enter your details below and click Calculate Gravel — your result appears instantly, right here in your browser. Nothing you enter is uploaded or stored.
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Enter your details below.
How to use
- Measure the area in square metres.
- Enter the depth in centimetres.
- Click Calculate Gravel.
About this tool
Enter area and depth, and the tool gives the volume in cubic metres plus an approximate weight using 1.6 tonnes per cubic metre, with a 10 percent allowance shown separately. Weight matters because delivery and barrowing limits are set by weight, not volume.
Frequently asked questions
Does gravel type change the weight?
Yes, density varies by stone type and size, so 1.6 tonnes per cubic metre is an approximation.
Should I include a membrane?
A weed membrane under gravel helps, but it does not change the volume calculation.