Gravel Calculator Help

Check your measurements, understand the result and prepare for ordering.

Check an estimate

Compare your shape, dimensions, units, depth, density and allowances with the worked examples. Check measured volume separately from ordering extras and supplier rounding. Confirm material and purchasing questions with your supplier.

Make a calculation reproducible

Export your project as JSON, or copy the estimate. Record the measured volume, ordering allowance and supplier rounding separately. Remove any private site or customer names before sharing a project file. Images are not included in exports.

Questions about your order

Ask your supplier about actual density, material suitability, the unit meant by “ton,” delivery access, minimum quantities and price. GravelMeasure does not sell materials or place orders.

Check the explanation first

Methodology and sources explains area × depth, unit conversion and rounding. A 20 × 10 ft area at 4 in gives 2.4691 yd³ before extras, which is a useful baseline for reproducing an issue.