Terms of Use

By using 100+ Calculators, you agree to these terms. If you don't agree, please don't use the site.

Informational purposes only

The site is provided free of charge for general information and estimation. Results from any calculator are estimates — not official figures, professional opinions, or advice. See our disclaimer for the limits of each category.

Your responsibility

You remain responsible for how you use the results — including any financial, health, or building decisions. Results can be affected by your inputs, assumptions, rounding, rates, and units. Verify important figures independently or with a qualified professional before acting on them.

Accuracy and availability

We build calculators from well-known public formulas and test them, but we can't promise results are error-free. The site is provided "as is," without warranties of any kind. We may change, add, or remove calculators or pages at any time, and we can't guarantee uninterrupted availability.

Acceptable use

Please don't misuse the site — for example, attempting to disrupt it, overload it with automated traffic, or use it for any unlawful purpose.

Intellectual property

The site's design, written guides, and code are the property of 100+ Calculators. The mathematical formulas the calculators implement are public knowledge and are explained openly on each page.

External links

Links to external websites are provided for convenience. We're not responsible for their content, accuracy, or practices.

Limitation of liability

To the maximum extent permitted by applicable law, 100+ Calculators isn't liable for any damages arising from the use of the site or reliance on its results.

Changes to these terms

These terms may be updated from time to time. The "last updated" date at the top of this page reflects the current version. Questions? Use the contact page.