Privacy Policy

Last updated: October 4, 2026

1. Your numbers stay yours

All calculators run entirely in your browser using JavaScript. Any numbers you enter are never transmitted to our servers.

2. Cookies

We use local storage to remember your cookie consent choice. Google AdSense may use cookies for personalized ads.

3. Google AdSense

We display ads via Google AdSense. Google may use cookies including the DoubleClick cookie to serve interest-based ads. Opt out at Google Ads Settings.

4. Contact form

Messages sent via our contact form are used only to respond to you.