Estimate gravel or crushed stone volume, approximate weight, coverage, waste, and material cost for rectangular or circular projects.
Dimensions are converted to meters before the shared prism or cylinder geometry formula produces cubic meters. Volume conversions then provide cubic feet and cubic yards.
Weight is a separate estimate: recommended volume is multiplied by the editable material density. The initial 100 lb/ft³ density and 10% allowance are planning conveniences, not universal gravel properties.
Material type, gradation, moisture-density relationship, and placement condition are project dependent. Use supplier, tested, or specification values when known.
Depth can be entered in inches or centimeters.
volume = length × width × depth × quantityUses the shared cylinder-volume helper.
volume = π × (diameter ÷ 2)² × depth × quantityDensity is normalized to kg/m³ before mass conversions.
mass = recommended volume × densityWeight is based on the recommended volume.
recommended volume = base volume × (1 + extra % ÷ 100)Reports ft² per yd³ or m² per m³ at the selected depth.
area = one unit of volume ÷ depthA 20 ft × 10 ft rectangle at 3 in depth uses 50 ft³, or about 1.85185 yd³. With an entered 10% allowance, it uses about 2.03704 yd³; estimated weight depends on the density entered.
A 5 m × 4 m rectangle at 10 cm depth uses 2 m³. With an entered 10% allowance and 1,600 kg/m³ density, it weighs about 3,520 kg or 3.52 tonnes.
At 3 in depth, one cubic yard covers about 108 ft². At 5 cm depth, one cubic meter covers 20 m².
The preset and initial densities are approximate, editable planning values. Replace them with supplier, tested, or project-specific data for the actual material.
Quick depth presets are input conveniences; CalcRocket does not prescribe a universal driveway, path, or drainage depth.
Optional cost covers material quantity only, excluding delivery, tax, labor, equipment, and minimum orders.
Aggregate moisture-density relationships and target placement conditions are established for the specific material and project. This calculator does not model gradation, moisture, or compaction separately; it multiplies recommended volume by the density entered.
One cubic yard equals 27 cubic feet. The calculator preserves full precision internally and rounds only displayed results.
Enter shape, dimensions, depth, quantity, editable density, and extra percentage to estimate volume and weight.
Calculate cubic feet from compatible dimensions and divide by 27, or let the calculator normalize mixed units.
One cubic yard contains exactly 27 cubic feet.
Coverage depends on depth. At 3 inches, one cubic yard covers about 108 square feet.
It depends on the applicable bulk density. Use supplier or project density for a better estimate.
Material, gradation, moisture, and placement condition affect the density relevant to the estimate.
Enter the depth appropriate to your project design; presets are not construction recommendations.
The appropriate allowance depends on project and purchasing conditions; the calculator's value is editable.
The calculator multiplies volume by the density entered, then converts mass to short tons or metric tonnes.
Do not assume so. Presets are approximate and editable; verify the actual product.
No. Optional cost is material-only.
Yes. Metric mode uses meters, centimeters, cubic meters, kilograms, and tonnes.