Terms of use

Informational only

Calcs provides calculators for informational and educational purposes. The results are not professional advice. For decisions with real financial, medical, legal, structural, or safety consequences, consult a qualified professional and verify any numbers yourself.

No warranty

The site is provided "as is" and "as available." We do not warrant that the calculators are accurate, complete, fit for any particular purpose, or free of bugs. Formulas come from published sources cited on each page — read them if accuracy matters to your use case.

Limitation of liability

To the maximum extent permitted by law, we are not liable for any direct, indirect, incidental, or consequential losses arising from your use of (or inability to use) the site. This includes financial loss from a bad mortgage decision, a wrong dosage, a misjudged construction estimate, or anything else.

Content rights

Calculator implementations, design, and original explanatory text on Calcs are © 2026 and licensed for personal use. You may share links and embed result screenshots freely. Bulk scraping or wholesale republication requires explicit written permission.

Open source references

Where we use third-party formulas (Mifflin–St Jeor, mortgage amortization, etc.) the sources are linked from each calculator page. Mathematical facts and standard formulas are in the public domain.

Changes

We may update these terms occasionally to reflect site changes. Material changes will be announced in the footer for at least 30 days. Continued use of the site after the change indicates acceptance.