Terms & Conditions
Last updated: October 1, 2026
Acceptance
By using Concrete Calculator Kit you agree to these terms. If you do not agree, please do not use the site.
Use of the calculators
Concrete Calculator Kit provides free calculators for personal and professional planning use. You may use them as often as you like. You agree not to misuse the site, attempt to disrupt it, or use automated systems to overload it.
No guarantee of accuracy
Our calculators use typical material densities and bag yields and are provided for general guidance. Materials vary with product, grade and moisture, and your supplier's figures for the exact product you buy are authoritative. Results from this site are estimates for planning and ordering, not engineering specifications. Always verify quantities for structural or critical work with a qualified professional and with your supplier.
No warranty
The site is provided "as is" without warranties of any kind. We do not guarantee that it will be available without interruption or free of errors.
Limitation of liability
To the fullest extent permitted by law, Concrete Calculator Kit is not liable for any loss or damage arising from your use of, or reliance on, the site or its calculations.
External links and advertising
The site may contain links to third-party websites and may display advertising. We are not responsible for the content, policies or practices of third-party sites or advertisers.
Changes
We may update these terms from time to time. Continued use of the site after changes are posted constitutes acceptance of the revised terms.
Contact
Questions about these terms? Email hello@concretecalculatorkit.com.