Site information
Terms of Use
These terms apply to use of gravelcalculator.app. Effective and last reviewed: .
Planning estimates only
The site provides mathematical estimates for preliminary planning. Results are not a supplier quote, construction specification, engineering design, safety instruction, or guarantee of material performance. Project conditions and local requirements can differ, so obtain qualified advice where design, drainage, structural loading, excavation, utilities, slopes, or public safety are involved.
Your measurements and assumptions
You are responsible for the dimensions, depth, density, compaction factor, waste allowance, package size, price, and supplier increment entered. Representative presets are starting points, not certified values for a product. Before ordering, confirm the material specification, bulk density, moisture basis, available order units, minimum quantity, delivery limits, and final quantity with the chosen supplier or installer.
Availability and permitted use
You may use the site for lawful personal or business estimation. Do not interfere with the service, attempt to bypass security controls, overload the site, or present its results as a guaranteed professional determination. Features, presets, and availability may change as the calculation engine and supporting content are reviewed.
External information and limitation
Links to standards bodies and government publications are supplied for context and do not imply endorsement. To the extent permitted by applicable law, the site is provided without warranties and its operators are not responsible for purchasing, delivery, installation, rework, delay, or other losses arising from reliance on an estimate. If these terms are not acceptable, do not use the site.