Terms of Service
Last Updated: May 2, 2026
1. Acceptance of Terms
By accessing and using OneCalc (the "Service"), operated by Arthurs, LLC, you agree to be bound by these Terms of Service. If you do not agree to any part of these terms, please do not use the Service.
2. Use of the Service
OneCalc provides a library of online calculators for personal, educational, and non-commercial use. You agree not to use the Service for any unlawful purpose, not to interfere with its operation, not to attempt to gain unauthorized access to it, and not to scrape or republish its content at scale without permission.
3. Calculations Are for Information Only
The calculators on OneCalc are provided for general informational and educational purposes only. They are not a substitute for professional medical, financial, tax, legal, engineering, nutritional, or other expert advice. You should always consult an appropriately qualified professional before making any decision that could affect your health, finances, safety, or legal situation.
4. No Warranty of Accuracy
While we put significant effort into building precise formulas and using high-quality numerical libraries, we make no warranty that the calculations are free from errors or fit for any particular purpose. Inputs may be misinterpreted, formulas may simplify real-world behavior, and rounding can introduce small differences. Use the results at your own risk and verify anything that matters.
5. Intellectual Property
All content on OneCalc — including text, graphics, logos, and software — is owned by Arthurs, LLC or its licensors and is protected by copyright and other intellectual property laws. You may use the Service for personal, non-commercial purposes; any other reproduction, distribution, or derivative use requires our prior written permission.
6. Third-Party Services and Links
The Service may include third-party scripts (such as analytics) and, in the future, advertisements served by Google AdSense. The Service may also link to third-party sites. We are not responsible for the content, accuracy, or privacy practices of any third party. Your interactions with third parties are governed by their own terms.
7. Limitation of Liability
The Service is provided "as is" and "as available" without warranties of any kind, whether express or implied. To the maximum extent permitted by law, Arthurs, LLC and its affiliates shall not be liable for any indirect, incidental, special, consequential, or punitive damages, or for any loss of profits, data, or goodwill, arising out of or related to your use of — or inability to use — the Service.
8. Indemnification
You agree to indemnify and hold harmless Arthurs, LLC and its officers, employees, and agents from any claim or demand arising out of your misuse of the Service or your violation of these Terms.
9. Changes to the Service or Terms
We may modify, suspend, or discontinue any part of the Service at any time without notice. We may also revise these Terms at any time; the revised version will be posted on this page with an updated "Last Updated" date. Your continued use of the Service after a revision constitutes acceptance of the new Terms.
10. Contact
For any questions about these Terms, please contact us at contact@onecalc.app.