Privacy
Short version: no cookies, no analytics, no advertising, no accounts — and nothing you type leaves your browser.
What the calculator does with your numbers
Nothing. Every calculation runs in your browser. Price, cost and fee inputs are never sent to a server, because the page has nowhere to send them: the site is static files.
Shared calculation links
"Copy link to this calculation" puts your inputs after a # in the URL. Browsers do not
send the part after the # to any server, so a shared link reveals your inputs only to
whoever you send it to. Those links are not indexed as separate pages, and the page carries a
canonical tag pointing at its clean URL anyway.
No analytics, no cookies, no ads — for now
There is currently no analytics package, no cookie, no tracking pixel and no advertising on this site. If display advertising is added later (the plan is not before meaningful traffic, and only if it does not slow the pages), the ad network will set its own cookies and this page will be updated with specifics before that happens — including how to opt out.
Hosting logs
The site is served as static files by a hosting provider, which may keep standard access logs (IP address, user agent, requested URL) for security and abuse purposes. Those logs are the host's, not something this site builds a profile from.
If you email us, the message sits in a mailbox and is used to answer you. It is not added to a list, because there is no list.
Last updated November 8, 2026.