Terms of Service
Last updated: October 2025.
By accessing or using Calcustack you agree to these Terms. If you do not agree, do not use the site.
Use of the site
Calcustack is provided for personal, non-commercial use. You may not scrape, mass-download or resell our content without prior written permission.
Intellectual property
All site content (text, design, code, brand) is owned by Calcustack or its licensors and protected by copyright and other laws. The underlying mathematical formulas are in the public domain.
No warranty
Calcustack is provided "as is" without warranty of any kind. While we work to keep calculations accurate, we make no guarantees about completeness, reliability, or fitness for a particular purpose.
Limitation of liability
To the maximum extent allowed by law, Calcustack and its operators are not liable for any direct, indirect, incidental or consequential damages arising from your use of the site.
Not medical, financial or professional advice
Calculators on this site are informational only. See our disclaimer.
Changes to the terms
We may update these Terms occasionally. Continued use after changes means you accept the updated Terms.
Governing law
These Terms are governed by the laws applicable to the operator's principal place of business, without regard to conflict-of-laws principles.