Privacy policy
Last updated November 2026.
What we collect
The calculators run entirely in your browser. The numbers you mark are never sent to us or stored. We don't ask for accounts, names or contact details.
Our host (Cloudflare) processes standard technical data, such as IP addresses and browser type, to deliver and protect the site.
Advertising and cookies
This site uses Google AdSense to show ads. Third-party vendors, including Google, use cookies to serve ads based on your previous visits to this and other websites. Google's advertising cookies let it and its partners serve ads to you based on those visits.
You can opt out of personalised advertising at Google Ad Settings, or opt out of some third-party vendors' cookies at aboutads.info. Learn more in How Google uses information from sites that use its services.
If you email us, we use your address only to reply.
Contact
Questions about this policy: contact@ozbox.org.