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Terms of Service

Last updated: July 23, 2026

These Terms of Service ("Terms") govern your access to and use of Calcformulas("we", "us", or "our") at calcformulas.com. By using our website, you agree to these Terms. If you do not agree, please do not use Calcformulas.

Summary

The plain-English version, with the full legal text below:

  • Calcformulas provides free online calculators for general informational purposes.
  • Results are estimates, not professional, financial, medical, or legal advice.
  • You may use the site for personal and non-commercial purposes, subject to these Terms.
  • We provide the site "as is" and limit our liability as described below.

Our service

Calcformulas offers a collection of online calculators across categories such as health, construction, math, engineering, and more. The service is provided free of charge and does not require you to create an account. Calculator inputs and results are processed in your browser unless otherwise stated on a specific page.

We may add, modify, or remove calculators and features at any time. We do not guarantee that any particular calculator will remain available or that the site will be uninterrupted or error-free.

Eligibility

You must be at least 13 years old to use Calcformulas. If you are under the age of majority in your jurisdiction, you may use the site only with the permission and supervision of a parent or legal guardian who agrees to these Terms on your behalf. By using Calcformulas, you represent that you meet these requirements.

Not professional advice

Calcformulas calculators are intended for general educational and informational purposes only. They are not a substitute for professional advice. Depending on the calculator you use, results may relate to health, construction, engineering, math, or other specialized topics.

You should not rely on Calcformulas results as the sole basis for important decisions. Always consult a qualified professional, such as a doctor, lawyer, accountant, financial advisor, engineer, or licensed contractor, before making decisions that could affect your health, safety, finances, or legal rights.

Nothing on Calcformulas creates a professional-client, doctor-patient, attorney-client, or fiduciary relationship between you and Calcformulas or its operators.

Accuracy of calculations

We work to keep our calculators accurate and up to date, and our About page describes how we source and test formulas. Even so, we do not warrant that any result is complete, current, or suitable for your specific situation. Formulas may use simplified assumptions, rounded values, or general defaults that do not reflect your exact circumstances, local regulations, or market conditions.

You are responsible for verifying inputs, units, and outputs before acting on any result. Use Calcformulas at your own risk.

Acceptable use

You agree not to:

  • Use Calcformulas in any way that violates applicable law or regulation
  • Attempt to gain unauthorized access to our systems, networks, or data
  • Interfere with or disrupt the site, including through automated scraping, bots, or denial-of-service activity
  • Reverse engineer, decompile, or extract source code except where permitted by law
  • Remove or alter copyright, trademark, or other proprietary notices
  • Use the site to transmit malware, spam, or harmful content
  • Present Calcformulas content as your own or misrepresent your affiliation with us

We may suspend or block access if we reasonably believe you have violated these Terms or pose a risk to the site or other users.

Intellectual property

Calcformulas and its content, including text, design, logos, calculator layouts, and software, are owned by us or our licensors and are protected by copyright, trademark, and other intellectual property laws. Mathematical formulas themselves are not something we claim to own; our protected work is the way we explain, implement, and present them.

We grant you a limited, non-exclusive, non-transferable, revocable license to access and use Calcformulas for personal, non-commercial purposes in accordance with these Terms.

You may not copy, reproduce, distribute, sell, license, or create derivative works from substantial portions of the site without our prior written permission, except for temporary copies made in the normal course of viewing the site or as allowed by applicable law.

Third-party links and services

Calcformulas may contain links to third-party websites or services, including the reference sources our formulas are based on. We do not control and are not responsible for their content, policies, or practices. Your use of third-party resources is at your own risk and subject to their terms and privacy policies.

Privacy

Our collection and use of information is described in our Privacy Policy and Cookie Policy, which are incorporated into these Terms by reference.

Disclaimer of warranties

TO THE FULLEST EXTENT PERMITTED BY LAW, CalcformulasIS PROVIDED ON AN "AS IS" AND "AS AVAILABLE" BASIS WITHOUT WARRANTIES OF ANY KIND, WHETHER EXPRESS, IMPLIED, OR STATUTORY, INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND NON-INFRINGEMENT. WE DO NOT WARRANT THAT THE SITE WILL BE UNINTERRUPTED, SECURE, OR FREE OF ERRORS, OR THAT RESULTS WILL BE ACCURATE OR RELIABLE.

Limitation of liability

TO THE FULLEST EXTENT PERMITTED BY LAW, Calcformulas AND ITS OPERATORS, AFFILIATES, AND SUPPLIERS WILL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR ANY LOSS OF PROFITS, DATA, GOODWILL, OR OTHER INTANGIBLE LOSSES, ARISING OUT OF OR RELATED TO YOUR USE OF OR INABILITY TO USE THE SITE OR ANY CALCULATOR RESULTS.

TO THE FULLEST EXTENT PERMITTED BY LAW, OUR TOTAL LIABILITY FOR ANY CLAIM ARISING OUT OF OR RELATING TO THESE TERMS OR THE SITE WILL NOT EXCEED THE GREATER OF (A) THE AMOUNT YOU PAID US, IF ANY, IN THE TWELVE MONTHS BEFORE THE CLAIM OR (B) ONE HUNDRED U.S. DOLLARS (USD $100). SOME JURISDICTIONS DO NOT ALLOW CERTAIN LIMITATIONS, SO SOME OF THE ABOVE MAY NOT APPLY TO YOU.

Indemnification

You agree to defend, indemnify, and hold harmless Calcformulas and its operators from and against any claims, damages, losses, liabilities, and expenses (including reasonable legal fees) arising out of your use of the site, your violation of these Terms, or your violation of any rights of another person or entity.

Changes to these Terms

We may update these Terms from time to time. When we do, we will revise the "Last updated" date at the top of this page. Material changes may also be noted on the site where appropriate. Your continued use of Calcformulas after changes become effective constitutes acceptance of the updated Terms.

Termination

You may stop using Calcformulas at any time. We may terminate or restrict your access to the site at any time, with or without notice, if we believe you have violated these Terms or for any other reason at our discretion.

Governing law and disputes

These Terms are governed by the laws of India, without regard to conflict-of-law principles, except where mandatory consumer protection laws in your country of residence require otherwise.

Any dispute arising from these Terms or your use of Calcformulas will be resolved in the courts located in India, unless applicable law requires a different forum. Nothing in these Terms limits any rights you may have under mandatory local consumer protection laws.

Severability and entire agreement

If any provision of these Terms is found unenforceable, the remaining provisions will remain in full force and effect.

These Terms, together with our Privacy Policy, constitute the entire agreement between you and Calcformulas regarding your use of the site and supersede any prior agreements on that subject.

Contact us

If you have questions about these Terms, email us at support@calcformulas.com or use the contact page.