Updated September 15, 2026.
The calculator runs entirely in your browser. We do not send calculator inputs to a server, store them in cookies or local storage, or include analytics, advertising scripts, remote fonts or account registration.
This website is hosted on Cloudflare Pages. Visiting the site sends network requests to Cloudflare, which may process request metadata such as IP addresses for delivery and security. See Cloudflare’s privacy policy. Calculator inputs are processed locally in your browser.
Following an official-provider link takes you to a separate website governed by that provider's policies. No purchasing or billing data is collected here.
This is an early public release and should not be treated as a published service. See About for what the project does and does not claim. If you email the public address on our contact page, we receive your email address and message to handle your inquiry. Do not include sensitive information.