Privacy Policy
Our calculators run in your browser; the numbers you type are not sent to our servers.
What We Collect
Calculator inputs stay in your browser and appear in the page address only when you use "Copy link". Standard server logs record pages visited for security.
Analytics and Advertising
The site may use privacy-respecting analytics and display advertising; advertising partners may set cookies to show and measure ads. Where the law requires it, you are asked for consent first.
Contact
Privacy questions: [email protected].
Last reviewed 2026-11-05. Numbers come from our tested engine; see how we calculate and our sources.