Terms of Service

Last updated: 2026. Plain-language terms for using Simple Calculators Online.

1. What this is

Simple Calculators Online is a free collection of browser-based calculators and converters. By using this site, you agree to these terms. If you don't agree, please don't use the site.

2. How the tools work

Every calculator runs locally in your browser. The numbers, dates, and other values you enter are processed on your own device and are never uploaded to our servers. See our Privacy Policy for more detail.

3. Not professional advice

These calculators provide general estimates for informational purposes only — they are not financial, medical, legal, or tax advice. Results depend entirely on the numbers you enter and the assumptions built into each formula. For decisions with real financial or health consequences, consult a qualified professional.

4. Acceptable use

You agree not to use this site to attempt to disrupt or overload it, to scrape or republish the tools' source code beyond fair use, or to use the site for any unlawful purpose.

5. No warranty

These tools are provided "as is," free of charge, with no guarantee that they'll always work perfectly on every browser or device, or that every calculation is free of error. We do our best to keep everything accurate and working reliably, but we can't promise it'll be error-free or available every second of every day.

6. Limitation of liability

To the fullest extent permitted by law, Simple Calculators Online and its operator are not liable for any loss or damage arising from your use of the site or its calculators — including decisions made based on a calculator's output.

7. Advertising

This site shows ads through Google AdSense (Auto Ads) to help cover hosting costs. See our Privacy Policy for details on how ad providers may use cookies.

8. Changes to these terms

We may update these terms occasionally as the site evolves. Continued use of the site after a change means you accept the updated terms.

9. Contact

Questions about these terms? Reach out via the contact details on our About page.