Crushed stone calculator

Estimate outputs: Area, Volume, Estimated mass. Adjust Length, Width, Layer depth to match your project.

Inputs and units

Use the units shown beside each field. Replace the sample values with your measurements and the figures on the selected product packaging.

Parameter	Example input
Length	8 m
Width	4 m
Layer depth	10 cm
Material density	1,550 kg/m³
Waste allowance	8 %

Formula and assumptions

Volume
Length × Width × Layer depth / 100 × (1 + Waste allowance / 100)

Estimated mass
Volume × Material density / 1000

ceil = round up; floor = round down; max = the greater value. Trigonometric angles are converted from degrees to radians.

Allowance is applied before rounding to whole packages. Whole units are rounded up; displayed decimals are rounded only for readability.

Bulk density and compaction vary with moisture and the delivered material. The allowance does not model compaction; obtain the ordering conversion from your supplier.

Worked example

Sample values are examples, not product specifications. Run the calculation again with your own measurements.

Result	Calculation
Area	32 m²
Volume	3.456 m³
Estimated mass	5.3568 t

Related calculators

Related tools use separate measurements. Check their inputs before transferring quantities.