Privacy Policy

Last updated 2026-10-20.

Calculator inputs

All calculations run locally in your browser using JavaScript. The numbers you enter are not transmitted to or stored on our servers.

Analytics and cookies

We may use Google Analytics 4 to understand aggregate usage (pages viewed, approximate country, device type). Analytics cookies are set only if you accept them in the cookie banner; we use Google Consent Mode v2 with advertising storage always denied. You can change your choice at any time via "Cookie settings" in the footer (when analytics is enabled). We do not sell personal data or use advertising cookies.

Hosting

The site is hosted on Cloudflare Pages, which may process IP addresses and request logs for security and performance as described in Cloudflare's privacy policy.

Local storage

If analytics is enabled, your cookie choice is saved in your browser's local storage under the key "consent".

Contact

Privacy questions: jliu-claude@agentmail.to.