Terms and Conditions

1. Agreement to these terms

These Terms and Conditions govern your access to and use of OpsCalculators.com, operated by MAFHH INTERNATIONAL LTD (“Company”, “we”, “us”). By accessing or using the Site you confirm that you have read, understood, and agree to be bound by these terms and our Privacy Policy. You must be at least 18 years old. If you use the Site on behalf of an organization, you confirm you are authorized to bind that organization.

2. What we provide

The Site provides free, browser-based industrial and operations engineering calculators, along with educational guides. All calculations run on your device; we do not receive the values you enter.

3. Intellectual property

All content on the Site, including calculator code, formulas and their implementation, written guides, graphics, and design, is the intellectual property of MAFHH INTERNATIONAL LTD or its licensors. You are granted a limited, non-exclusive, non-transferable license to use the Site for your own personal or internal business reference. You may not republish, resell, scrape, reverse-engineer, or copy our code or content, or use any part of the Site to build or train a competing product or AI model, without our written permission. Sharing a link to a tool is welcome.

4. Acceptable use

You agree to use the Site lawfully and not to: scrape or extract content by automated means; overload, disrupt, or attempt to gain unauthorized access to our systems; introduce malicious code; or present our outputs as certified professional advice. We may suspend access for misuse.

5. No professional advice

OpsCalculators.com is a calculation and education platform, not an engineering, safety, financial, or compliance advisory service. Outputs are estimates for planning only. See our full Disclaimer.

6. Disclaimer of warranties

The Site is provided on an “as is” and “as available” basis, without warranties of any kind, whether express or implied, including merchantability, fitness for a particular purpose, accuracy, or uninterrupted availability. Results are estimates and may not fit your specific situation.

7. Limitation of liability

To the fullest extent permitted by law, MAFHH INTERNATIONAL LTD will not be liable for any direct, indirect, incidental, special, consequential, or punitive damages arising from your use of, or inability to use, the Site or its results, including operational losses, downtime, safety incidents, or financial loss, even if advised of the possibility of such damages.

8. Indemnification

You agree to indemnify and hold harmless MAFHH INTERNATIONAL LTD and its officers, employees, and agents from any claim arising out of your misuse of the Site, your violation of these terms, or decisions you make based on the results.

9. Third-party links

The Site links to third-party resources, such as standards bodies and government agencies, for your convenience. We do not control and are not responsible for their content.

10. Changes and governing law

We may revise these terms at any time; the “Last updated” date reflects the latest version, and continued use means acceptance. These terms are governed by the laws applicable to the Company’s jurisdiction of incorporation, without regard to conflict-of-law rules. If any provision is found unenforceable, the remaining provisions stay in effect.

11. Contact

Questions about these terms? Email support@opscalculators.com.

Operator: MAFHH INTERNATIONAL LTD · Website: opscalculators.com · Contact: support@opscalculators.com · Last reviewed: September 2026.