Privacy Policy

Last updated: October 2026.

What we collect

We do not ask you to create an account. The tools on this site run in your browser; values you type into a calculator are processed on your device and are not sent to our servers.

Cookies and ads

We may show ads from third-party vendors, including Google. Google uses cookies to serve ads based on your prior visits to this and other websites. You may opt out of personalized advertising by visiting Google Ads Settings.

Analytics

We may use privacy-friendly analytics to understand which tools are popular so we can improve them.

Contact

Questions about this policy: see our contact page.