These terms exist to protect both you and us. We have written them in plain language, because legal documents designed to confuse are not agreements. They are traps. We don't do traps.
By accessing or using www.numerahub.org, including any calculator or converter on this site, you agree to be bound by these Terms of Use. If you do not agree with any part of these terms, please do not use this site.
These terms apply to all visitors, readers, and contributors. They govern your use of NumeraHub content, calculators, and converters, your conduct on the site, and our respective rights and responsibilities. Please read them carefully, particularly Section 5, which covers what our calculators and converters can and cannot be relied on for.
By visiting www.numerahub.org, reading our content, using our calculators or converters, or interacting with the site in any way, you accept these Terms of Use in full. Your continued use of the site constitutes your ongoing agreement with these terms.
These terms apply to all users of the site, including browsers, readers, commenters, and contributors. If you are using this site on behalf of an organization, you represent that you have the authority to bind that organization to these terms. If you disagree with any part of these terms, your remedy is to discontinue use of the site.
All content published on NumeraHub, including but not limited to articles, calculator and converter interfaces, their source code, worked examples, illustrations, logos, design elements, and page layouts, is the intellectual property of NumeraHub and its contributors, protected under applicable copyright law. The underlying mathematical formulas themselves are not owned by anyone; our specific explanations, worked examples, and code implementing them are.
Use any calculator or converter on the site freely for your own personal or professional calculations. Read, share, and link to our articles. Quote brief excerpts (under 50 words) with clear attribution and a link back.
Copy our calculator or converter source code to build a competing tool. Reproduce full articles or substantial portions of our content without written permission. Republish our content on other websites. Use our content for commercial purposes without a licensing agreement.
The NumeraHub name, logo, and visual identity are trademarks of the publication. For syndication, republication, or licensing inquiries, contact us through our contact page.
NumeraHub grants you a limited, non-exclusive, non-transferable license to access, read, and use the calculators and converters on this site for personal or professional, non-commercial use. This license does not include any right to:
- Scrape, crawl, or systematically download content or source code using automated tools
- Reproduce or distribute our calculators, converters, or content for commercial gain
- Remove or alter any copyright, trademark, or proprietary notices
- Use our content or code to train machine learning or AI models without written consent
- Frame or mirror any part of the site without our written permission
Any use of the site beyond what is explicitly permitted here requires prior written authorization from NumeraHub. Unauthorized use terminates the license granted above immediately and without notice.
NumeraHub is built on honest, useful information. We expect readers who interact with the site, particularly through comments, to conduct themselves accordingly. The following is strictly prohibited: harassment or personal attacks against other readers or contributors; hate speech targeting a person or group; spam or unsolicited commercial messages; deliberately posting false information or misleading claims; impersonating another person; and any use of the site that violates applicable law.
We reserve the right to remove any comment or content that violates these standards, and to restrict or terminate access for repeat violations, without prior notice.
NumeraHub provides its calculators, converters, and content for educational and informational purposes only. We verify every formula against standard references and test every calculator and converter extensively before publication, but we make no warranty, express or implied, that any calculator's or converter's output is free of error or fit for a specific decision you need to make.
Are for illustration and estimation only. They do not constitute financial, investment, tax, or legal advice. Consult a qualified professional before making financial decisions.
Provide general estimates based on published formulas. They are not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about your health.
Are built and tested to be mathematically accurate, but for high-stakes academic, financial, or professional work, always verify results independently.
Use conversion factors checked against their official definitions. Results are rounded for display, so for legal, trade, or engineering work, confirm critical values against the relevant official standard. The Currency Converter shows reference exchange rates fetched on the day, with their date; they are not quotes for buying or selling currency.
The site is provided on an "as is" and "as available" basis. Any reliance you place on a calculator's or converter's output, or on any information on this site, is strictly at your own risk.
To the fullest extent permitted by applicable law, NumeraHub, its editorial team, contributors, and affiliates shall not be liable for any indirect, incidental, special, consequential, or punitive damages arising from your use of, or inability to use, this site, its content, or any calculator or converter, including damages for loss of profits, loss of data, or business interruption, even if we have been advised of the possibility of such damages.
In jurisdictions that do not allow the exclusion of certain warranties or the limitation of liability for certain damages, our liability is limited to the maximum extent permitted by law.
NumeraHub articles may link to external sources used to verify a formula or provide further reading. We do not control the content, privacy practices, or terms of external sites. Linking to a site does not constitute an endorsement of that site. When you leave NumeraHub through an external link, you are subject to the terms and privacy policy of the destination site.
You agree to indemnify, defend, and hold harmless NumeraHub, its editorial team, contributors, and affiliates from and against any claims, damages, losses, liabilities, costs, and expenses arising from your use of the site in violation of these Terms of Use, content you submit through the site, your violation of any applicable law, or your infringement of any third-party rights.
NumeraHub welcomes feedback, calculator or converter requests, and bug reports. If you send us suggestions or other information ("Submissions"), you grant NumeraHub a worldwide, perpetual, irrevocable, non-exclusive right to use your Submissions in any way we see fit, including to build or improve a calculator based on your suggestion. No compensation is paid for the use of Submissions, and no Submission is subject to any obligation of confidentiality on our part.
NumeraHub reserves the right, at its sole discretion, to terminate your access to the site or any portion of it at any time, without notice, for conduct that violates these Terms of Use or is harmful to other users, to us, or to third parties. We may add, modify, or discontinue any calculator, converter, or feature at any time.
We reserve the right to modify these Terms of Use at any time. When we do, we update the "Last updated" date at the top of this page. Changes take effect immediately upon posting. Your continued use of the site after changes are posted constitutes acceptance of the revised terms.
Any dispute arising from these terms or your use of the site shall first be addressed through direct communication with us via our contact page. We prefer resolution through dialogue and make every reasonable effort to address legitimate concerns promptly. We genuinely believe that most disputes between a publication and its readers can be resolved with honest communication. If something is wrong, tell us. We listen.
If any part of these Terms of Use is found invalid or unenforceable, the invalid provision will be deemed superseded by a valid, enforceable provision that most closely matches the original intent, and the remainder of the agreement continues in full effect. These Terms of Use constitute the entire agreement between you and NumeraHub regarding your use of this site, superseding all prior communications. Nothing in these terms creates any joint venture, partnership, employment, or agency relationship between you and NumeraHub.
If you have questions about these Terms of Use, believe your rights have been violated, or need to request a content or code license, please reach out through our contact page. We respond to all legitimate legal inquiries within 30 days.
NumeraHub, Staff Editorial, www.numerahub.org
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