Aggregate & Material Calculator
An all-purpose aggregate and material calculator for gravel, crushed stone, sand and base. Choose the material, enter the area and depth, and get the volume, tonnage, cubic yards and cost.
Aggregate & Material Calculator Tool
What is construction aggregate?
Aggregate is the broad term for granular materials — gravel, crushed stone, sand and recycled concrete — used for bases, concrete, drainage and fill. Pick the material in the density menu so the tonnage is accurate.
Common aggregate densities
| Material | Density (t/m³) |
|---|---|
| Crushed stone / crusher run (base) | 1.60 |
| Gravel | 1.52 |
| Sand | 1.60 |
| Limestone | 1.68 |
| River rock | 1.44 |
How to calculate aggregate
Volume = Area × Depth
Tonnes = Volume (m³) × Density (t/m³)
For a compacted base under a driveway or patio, 10–15 cm (4–6 in) of crusher run is typical. See the crushed gravel calculator for Canadian sizes.
Frequently asked questions
How do I calculate how much aggregate I need?
Multiply area by depth for the volume, then by the material density for the weight in tonnes. Select the material in the calculator so the density is correct.
What is the density of aggregate?
Most construction aggregate is about 1.5–1.7 tonnes per cubic metre; sand ~1.6, crushed stone ~1.6, gravel ~1.52, limestone ~1.68.
How much aggregate for a base layer?
A compacted base for a driveway or patio is typically 10–15 cm (4–6 inches) of crusher run. Enter your area and depth for the exact tonnage.
Is aggregate sold by weight or volume?
Bulk aggregate is usually sold by the tonne, and sometimes by the cubic yard. The calculator gives both plus cost.
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Disclaimer: Results are estimates based on the values you enter and typical material densities. Actual quantities vary with gravel type, particle size, moisture and compaction. Cost estimates cover material only and exclude labour, delivery and taxes. Confirm quantities with your supplier.