TRUST · TERMS

Terms of use

One job: the site rules for using How To Calculate. By using this website you agree to these terms. If you do not agree, do not use the site.

Last updated: 25 July 2026

Framing: agreement and liability rails for site use, not a Privacy reprint and not a full YMYL disclaimer dump.

What this page owns

Contract-style rules for access, conduct, intellectual property, and liability. For educational limits on calculator outputs by domain, see Disclaimers. For data practices, see Privacy. To reach us, see Contact.

Rules of use

Three rails. Read these before the detail sections.

You may

  • Use free calculators for personal, academic, or internal business planning sketches
  • Cite a public page URL when discussing a result
  • Share a Share / Copy link you generate from a calculator
  • Email corrections or questions through Contact

You may not

  • Treat calculator output as professional advice or as the sole basis for high-stakes decisions
  • Scrape, overload, or disrupt the site; probe for unauthorized access; or distribute malware
  • Copy or republish site code, branding, or original guides without permission
  • Embed or redistribute our calculator apps as if they were your product
  • Use the site for illegal activity

We are not liable for

  • Decisions you make from a result (finance, tax, health, legal, crypto, or otherwise)
  • Losses from inaccurate inputs, outdated assumptions, or incomplete models
  • Third-party sites we link to, including their content and privacy practices
  • Outages, browser limits, or force majeure events outside reasonable control

Acceptance

Accessing or using howtocalculate.app means you accept these Terms and our Privacy Policy. If you use the site on behalf of an organization, you represent that you have authority to bind that organization.

Calculators are free informational tools. You are responsible for inputs, interpretation, and whether you need a qualified professional before acting.

Intellectual property

Site code, branding, layout, and original written guides on this domain are owned by How To Calculate unless marked otherwise. Standard mathematical formulas used for education are not a claim of ownership over the underlying math; our presentations, interfaces, and explanations are protected as our works.

You may use calculation results for your own planning. You may not copy the product, strip branding and republish pages wholesale, or present our tools as your software without written permission.

Accuracy and liability

Services are provided as is, without warranties of merchantability, fitness for a particular purpose, or non-infringement to the fullest extent allowed by law. We do not guarantee error-free, complete, or up-to-date results.

To the fullest extent permitted by law, How To Calculate is not liable for direct, indirect, incidental, special, or consequential damages arising from use or inability to use the site or its calculators, including decisions based on outputs.

Domain-specific educational limits live on Disclaimers. Those limits do not replace these Terms; they explain what the tools are for.

Changes, contact, and disputes

We may update these Terms by posting a new version on this page with an updated date. Continued use after changes means you accept the revised Terms. We may suspend or block access for abuse or harmful conduct.

Questions or reported violations: cihattoplutas@gmail.com or Contact. Prefer a clear description and the page URL when relevant.

If a dispute arises, contact us first and try to resolve it directly. If that fails, disputes are subject to the courts of competent jurisdiction that apply to the parties and the subject matter. These Terms, together with the Privacy Policy, are the entire agreement for site use and supersede prior informal understandings on the same topic.

If a court finds one provision unenforceable, the rest remain in effect. Our failure to enforce a provision is not a waiver unless we agree in writing.

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