Privacy
Short version: what you type into a calculator stays on your device. We never see it.
Calculator inputs never leave your device
Every calculation runs in JavaScript in your own browser. Inputs are not submitted anywhere, not put in the web address, not saved in cookies or browser storage, and not sent to analytics, advertisers or us. Close or reload the page and they are gone.
What our web server sees
Like any website, our server receives standard request information when you load a page: your IP address, the page address, the time and your browser type. This is kept in normal server logs for security and troubleshooting. It never includes your calculator inputs.
Fonts and scripts
Fonts and scripts are served from our own domain. Pages do not load third-party trackers.
Advertising
We plan to show display ads. If we do, this page will be updated first to explain which ad provider is used, what it collects and how to opt out. Ad code will never have access to calculator inputs or results.
Children
This site is meant for adults and does not knowingly collect information from children.
Changes
If this policy changes, we will update this page and its last-reviewed date.