Privacy Policy

Last updated: October 21, 2026

What we collect

The calculators run entirely in your browser. The numbers you enter are not sent to us or stored. Our hosting provider, Cloudflare, records standard request data such as IP address, browser type and pages visited. That data is used for security and to measure aggregate traffic.

Advertising and cookies

We may show ads from third-party vendors, including Google. These vendors use cookies to serve ads based on your previous visits to this and other websites. Google's use of advertising cookies lets it and its partners serve ads based on your visits to this site and other sites on the internet.

You can opt out of personalized advertising by visiting Google Ads Settings, or opt out of some third-party vendors' cookies at aboutads.info. For more, see how Google uses information from sites that use its services.

Your choices

You can block or delete cookies in your browser settings. Visitors in the EU, UK and some US states may be asked for consent before personalized ads are shown.

Contact

Questions about this policy? See our contact page.