Privacy Policy

Last updated: October 20, 2026

Calculator data

The calculator runs in your browser. We do not receive the dates or names you type. Your last entry is saved in your browser's local storage so it is there next time. A share link puts your entry in the page address. You can clear it by clearing site data in your browser.

Server logs

Our host may log basic data such as IP address, browser type and pages visited. This is for security and speed.

Advertising and cookies

We may show ads from third parties, including Google. Third party vendors, including Google, use cookies to serve ads based on a user's prior visits to this website or other websites. Google's use of advertising cookies enables it and its partners to serve ads to you based on your visit to this site and/or other sites on the Internet. You can opt out of personalized ads at Google Ads Settings. You can opt out of some other vendors' cookies at aboutads.info. Where the law requires it, such as in the UK and EU, we will ask for consent before we set cookies that are not needed.

Analytics

We may use simple, privacy friendly analytics to see which pages help people. We will list any such tool here.

Children

This site is not for children under 13. We do not knowingly collect their data.

Contact

Questions about this policy: hello@example.com.