How to measure
Use these guides to identify the measurements the calculator needs. Drawings are not to scale.
Triangle: A is the base; B is height at a right angle to that base, not the sloped side.
Circle: D is the diameter through the center, not the radius.
Check the unit beside every field. For example, 10 ft 6 in is 10.5 ft. A layer depth may use inches while length uses feet.
Volume first, weight second
Measure the area and enter the depth for the layer you are ordering. The calculator first finds volume, then estimates weight using the density shown in the form. All material presets remain editable.
A 10 × 10 ft area at 4 inches deep needs about 33.33 cubic feet. With 10% extra, it becomes 36.67 cubic feet, or 1.36 cubic yards. At 1.4 US tons per cubic yard, that is about 1.90 US tons, or 1.72 metric tonnes.
How it works
Area × depth gives cubic feet; divide by 27 to get cubic yards. Weight in US tons = cubic yards × the density you enter. Multiply US tons by 0.90718474 to get metric tonnes.
CT Hauling’s material calculator supplies the example densities: 1.4 US tons per cubic yard for pea gravel and crushed stone, and 1.5 for crusher run. These are supplier estimates, not specifications for every quarry. Roseville Landscape Supply gives a range of 1.3–1.4 tons per cubic yard for its pea gravel, illustrating why a single fixed density is not enough.
Check before ordering
Match the density to the actual product and ask whether the supplier means loose or compacted material. The initial depth and 10% extra are example settings. This calculator does not design a driveway base, choose drainage layers, calculate vehicle loads, or confirm a truck’s payload.
Weight is shown to two decimal places without rounding to a delivery increment. A supplier may sell in different increments or set a minimum order. Keep US tons, metric tonnes, and cubic yards distinct when requesting a quote.