Terms of Use

By using Concrete Mix Calc you agree to these terms. The gist: the calculators are planning tools, not engineering advice, results are estimates offered as-is, and you remain responsible for compliance with the codes and professionals that govern your project.

1. What the service is

Free, ad-supported-possibly-later web calculators and guides that estimate concrete volumes, bag counts, weights and costs from the dimensions you enter, using published industry constants. The site is provided free of charge, without registration.

2. Estimates are not professional advice

Results are mathematical estimates based on your inputs and rule-of-thumb allowances. They do not account for your soil, climate, local building code, mix design or workmanship. Slab thickness, footing depth, reinforcement and structural decisions must come from your local building department and, where applicable, a licensed engineer. Always confirm final quantities and prices with your supplier before ordering.

3. No warranty

The site and its content are provided "as is" without warranties of any kind, express or implied, including accuracy, fitness for a particular purpose and non-infringement. We work to keep formulas correct and will correct reported errors, but we do not warrant that results are error-free or uninterrupted.

4. Limitation of liability

To the maximum extent permitted by law, Concrete Mix Calc and its operators are not liable for any indirect, incidental or consequential damages arising from use of the site — including extra concrete ordered, short loads, project delays or construction costs of any kind. Use of the estimates is at your own discretion and risk.

5. Your responsibilities

• Enter dimensions honestly and double-check critical ones.
• Follow local codes, permits and inspection requirements.
• Don't scrape, resell or misrepresent the site as your own service.

6. Intellectual property and changes

The site's text, design and code are owned by its operators; quoting our formulas is free — copying the site is not. We may update these terms as the site evolves; the date at the top shows the current version. Questions go to the contact page.