Privacy

No cookies, no account, and the figures you type are not sent to us.

What you type

The calculators run entirely in your browser. Your inputs are written into the page address, after the #, so you can bookmark or share a result. A browser does not send the part of an address after the # to the website, so the figures are not part of any request to our host. Anyone you send the link to can see the figures in it.

We have not been able to confirm from Cloudflare’s documentation whether its visit counter (below) records the part of an address after the #, so do not put anything private in the fields of a link you share or open.

What your browser remembers

If you choose a currency or switch between light and dark, your browser stores that choice on your own device (local storage) so the next page uses it. It is not a cookie and is never sent to us. Clearing your browser’s site data removes it.

Counting visits

We count visits with Cloudflare Web Analytics, which Cloudflare describes as privacy-first: it sets no cookies and does not use local storage to follow you. It tells us which pages are read and roughly where visitors come from, not who you are.

Hosting

The site is hosted on Cloudflare Pages. Like any web host, Cloudflare handles your IP address to deliver the pages and to protect the site from attacks.

Advertising and links

There is no advertising on the site today. If we add ads or affiliate links later, this page will say so first, along with what they collect.

Last updated 15 November 2026.