Aggregates Volume Calculator

Using this quantity calculator you can find out just how much material you need.
Use the top form for Metric and the lower form if you prefer feet & inches.
Carefully enter values for the length, width & depth in all the red fields.
Choose a density of 1.76 for concreting ballast, 1.50 for pea shingle and use 2.00 for scalpings.  
Then click on the Compute button.