Your inputs stay in your browser.
Calculations run locally, and calculator inputs are not sent to us. We use Cloudflare Web Analytics to count page visits; it does not set cookies or track you across websites. It records the address of each page you visit, so opening a share link can include the assumptions in that link. There are no advertising scripts or tracking cookies.
Copy link includes the displayed calculator assumptions in the URL. Anyone with that link can read them. Opening an official source or X uses that service’s privacy policy. If you email us, your message and email address are received by Jacky Jian to respond to your request; email is handled by the relevant mail providers. Our hosting provider, Cloudflare, processes standard request data such as IP address and browser type to deliver and protect the site.
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