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Aggregates Calculator
Estimate how much aggregate you need (volume & weight). Switch units between Metric (m, mm) and Imperial (ft, in). For Kiln Dried Sand, enter block size & joint size.
Estimate only — varies by source, moisture & grading.
Finished/compacted depth in millimetres.
Areas (you can add multiple)
Each area uses Length × Width in metres.
Total Volume
0.00 m³
Sum of all areas × depth
Estimated Weight
0.00 t
Based on density (estimate)
Bag suggestion
—
Uses 850 kg bulk + 25 kg bags to cover need
How to use
- Select Units (Metric or Imperial).
- Select your Material. If “Kiln Dried Sand”, enter block size & joint size (Depth becomes joint depth).
- Enter the Depth.
- Add one or more Areas (Length × Width).
- Review volume, tonnes, and the bag suggestion.
- Use Print / Save as PDF for a tidy summary.
Disclaimer: Figures are estimates only. Densities vary by source, moisture and grading. Always confirm with your installer/specification and allow for site condition and compaction.