Estimate rectangular, circular, triangular or multi-zone gravel volume, weight, material cost and bags with clear density and waste assumptions.
01 / INPUTS & ASSUMPTIONS
02 / RESULT & EXPLANATION
| Zone | Shape | Area | Base volume |
|---|---|---|---|
| 1 | rectangle | 50 m² | 5 m³ |
Enter your values locally; no inputs are uploaded.
Check validation feedback before reviewing the browser-generated result.
Review the explanation, copy supported outputs or reset the workspace.
Enter the values and units for gravel calculator, review the stated scope, then choose Calculate. Use the worked explanation and bounded tables to check the result; copy or reset locally.
Separate base and waste-adjusted volume, metric tonnes and US short tons, and volume/mass/bag pricing with editable approximate bulk density.
Gravel Calculator inputs and calculations remain in browser memory. No external processing service receives entered values. Existing website infrastructure may log ordinary page requests; copying occurs only when selected.
Multiply area by depth after converting to SI units. Rectangles use length times width, triangles use base times perpendicular height divided by two, and circles use pi times radius squared. Known area and multiple zones are also supported.
Order volume equals base volume times one plus waste percentage divided by 100. It is applied once to the combined base volume. Estimated mass and material pricing then use that order volume.
Multiply order volume in cubic meters by the editable bulk density in kg/m³. Density presets are approximate examples, not guaranteed supplier specifications, and vary with grading, moisture and compaction.
Yes. A metric tonne is 1,000 kg. A US short ton is 2,000 international pounds, or 907.18474 kg. Both are labeled explicitly and are not treated as interchangeable.
Yes. Select cubic meters, cubic yards, kilograms, metric tonnes, US short tons or bags. Bag pricing requires an entered bag weight, and the bag count rounds up. Leaving price blank omits estimated cost.
Compaction, site shape, uneven depth, drainage design, moisture and supplier bulk density can change actual requirements. This is a geometric quantity estimate, not a construction specification. Confirm depth, density and delivered quantities with your supplier.