By using this site you agree to these terms.
Estimates only
The calculators and guides give estimates based on typical rock weights, stone densities and the measurements you enter. They are not professional, engineering or construction advice. Actual quantities and weights depend on the stone, its size and moisture, compaction and site conditions. Confirm quantities with your supplier or contractor before you order. Don’t rely on a weight estimate alone when lifting or moving stone: check the rated capacity of any equipment with a safety margin, and follow local codes and safety guidance for your project.
No warranty
The site is provided “as is”, without warranties of any kind. We are not liable for any loss or damage arising from the use of the site or reliance on its results, including over- or under-ordering of materials.
Content
The text, calculators and illustrations on this site are owned by Rock Calculators. You may link to any page and quote short passages with a link back. Please don’t copy whole pages or the calculators.
Links
Pages may link to other websites for reference. We aren’t responsible for their content.
Changes
We may update these terms. The date at the top shows the latest version.