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 an editable material density. Density varies with material, grading, moisture, and compaction.
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 10% extra, it uses about 2.03704 yd³; weight depends on density.
A 5 m × 4 m rectangle at 10 cm depth uses 2 m³. With 10% extra 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.
Preset densities are approximate planning values. Replace them with supplier data for the actual material.
Enter the intended project depth; 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.
Rock type, particle size, void space, moisture, and compaction change bulk density. Weight is therefore labeled estimated, never exact.
One cubic yard equals 27 cubic feet. The calculator preserves full precision internally and rounds only displayed results.
Enter shape, dimensions, depth, quantity, 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 bulk density. Use supplier density for a better estimate.
Material type, grading, moisture, voids, and compaction affect bulk density.
Enter the depth appropriate to your project design; this calculator does not give a universal construction recommendation.
The appropriate allowance depends on measurement uncertainty, settlement, compaction, and site conditions.
The calculator multiplies volume by density, then converts mass to short tons or metric tonnes.
No. Presets differ, but both remain approximate and editable.
No. Optional cost is material-only.
Yes. Metric mode uses meters, centimeters, cubic meters, kilograms, and tonnes.