Terms of Use

Last updated: August 2026

These Terms of Use govern your access to and use of CalcLumen. By using the site, you agree to these terms. If you do not agree, please do not use the site.

Information only, not professional advice

Our calculators are provided for general information and educational purposes only. Results are estimates and simplifications. They are not financial, investment, tax, legal, medical, or other professional advice, and they should not be relied on as a substitute for the advice of a qualified professional. Always consult an appropriate professional before making decisions that depend on these calculations.

No warranty or accuracy guarantee

CalcLumenis provided “as is” and “as available” without warranties of any kind, express or implied. While we work to keep our calculators correct and up to date, we do not guarantee that results, content, or the site itself are accurate, complete, current, or error-free, or that the site will be available without interruption.

Limitation of liability

To the fullest extent permitted by law, CalcLumen and its operators will not be liable for any loss or damage arising from your use of, or reliance on, the site or its calculators, including any direct, indirect, incidental, or consequential damages. You use the site and its results at your own risk.

Acceptable use

You agree to use CalcLumen lawfully and not to:

• interfere with, disrupt, or place an unreasonable load on the site or its infrastructure;
• attempt to gain unauthorized access to any part of the site or its systems;
• scrape, copy, or republish substantial parts of the site in a way that competes with it or misleads others; or
• use the site in any way that is unlawful or infringes the rights of others.

Intellectual property

The name CalcLumen, the site design, text, and the calculators are owned by us or our licensors and are protected by applicable laws. You may use the calculators for your own personal or business decision-making, but you may not copy, redistribute, or create derivative works from the site’s content without our permission, except as allowed by law.

Changes to these terms

We may update these Terms of Use from time to time. When we do, we will revise the “Last updated” date above. Your continued use of the site after changes take effect means you accept the revised terms.

Contact

If you have questions about these Terms of Use, email us at contact@calclumen.com.