Privacy Policy

This site is a static calculator. The math runs in your browser - the numbers you type are never sent to any server, stored, or seen by anyone.

Analytics. We use privacy-respecting aggregate traffic measurement (page views by country and referrer). No profiles, no cross-site tracking, no advertising cookies set by us.

URL parameters. When you use a calculator, your inputs are placed in the page address so you can bookmark or share a scenario. Those parameters stay on your device - they are not transmitted to us.

No accounts, no forms. Nothing to sign up for, nothing to opt out of.

Questions: Contact. Last updated October 18, 2026.