Sand Calculator
Estimate sand volume for paving, bricklaying, sandpits and other projects. See cubic metres first, plus indicative weight and ordering equivalents.
Calculate Your Sand
Editable presets only — confirm the required depth for your project
Total Volume
Volume: Length × Width × Depth (converted to metres). For circles: π × radius² × depth. For triangles: ½ × base × height × depth.
Weight: Volume × the selected indicative density. Confirm the exact product conversion with the supplier; see Methodology & Sources.
20 kg equivalent: Estimated kilograms ÷ 20, rounded up. This is a mass comparison, not a retail pack count.
1 m³ bulk-bag equivalent: Volume ÷ 1.0, rounded up. Confirm the supplier's actual bulk-bag size.
Calculate Sand Volume for a Measured Area
Enter the shape, dimensions and project depth. LandscapeCalc converts millimetres to metres and calculates cubic metres without adding a hidden allowance.
Choose the Product Before Converting to Weight
Washed, brickies, paving and sandpit products are not interchangeable. Selecting a subtype changes the indicative density used for the secondary weight result; it does not decide which product is suitable.
Moisture and Grading Matter
Bulk sand weight changes with moisture, mineral composition, grading and compaction. Use cubic metres for the initial volume calculation, then confirm the exact product conversion with the supplier.
Pack Sizes Vary
The 20 kg output is a mass equivalent rather than a retail bag count. Check the bag's stated mass or litre volume and coverage before purchase. All formulas, coefficients and rounding rules are published on the Methodology & Sources page.
Sand Weight Reference
See how the indicative conversion works for a one-cubic-metre starting volume.