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Plan aggregate quantities with confidence.

Calculate area, volume, tonnes, whole bag counts, coverage and optional costs for common aggregate projects. Everything runs locally in your browser.

6 area shapes UK material densities Metric + imperial Share + print

Advanced calculator

Aggregate quantity calculator

Start with a preset or configure everything yourself.

Project preset Choose a preset for sensible starting values. Material Planning density is used to convert volume into weight.

Use the shape that most closely matches the area you are covering.

Shape Dimension unit

Depth has a large effect on quantity. Use the finished compacted depth where relevant.

Depth Depth unit Waste / ordering allowance

Advanced options

Custom density

t/m³

Supplier data should take priority over planning defaults. Compaction allowance Add extra compaction allowance

Price per tonne

Delivery cost

Bag formats 1,000 kg bulk bag 850 kg bulk bag 800 kg bulk bag 25 kg bag 20 kg bag

Converter

Direction Material

1 m³ = — tonnes

Saved locally

Your recent calculations stay in this browser.

Reference data

Use supplier product data whenever available. These figures are planning defaults.

Material	Category	Planning density	Typical range	Compaction