Privacy Policy

Last updated October 28, 2026.

What we collect

The calculators run in your browser. The numbers you type are not stored or sent to us. If you sign up for the newsletter, we keep your email address only to send it, and you can unsubscribe at any time.

Advertising and cookies

This site uses Google AdSense to show ads. Google and its partners use cookies to serve ads based on your visits to this site and other sites on the internet. Google's use of advertising cookies lets it and its partners serve ads to you based on those visits. You can turn off personalized advertising in Google Ads Settings, or opt out of some third-party vendors' cookies at aboutads.info. Learn more in how Google uses information from sites that use its services.

Analytics and logs

Our web host may keep standard server logs (such as IP address, browser type and pages visited) for security and to keep the site running.

Links to other sites

We link to official government and other sources. Their privacy practices are their own.

Your choices

You can block or delete cookies in your browser settings. Questions about this policy can be sent through our contact page.