Privacy Policy
Last updated July 18, 2026
This Privacy Policy explains how Numexa ("we", "us") handles information when you use numexa.net (the "Site"). We've written it to be readable, not lawyerly.
Your calculations stay in your browser
Our calculators run entirely in your browser. The numbers you enter — your weight, height, income, and so on — are processed on your own device and are not transmitted to or stored on our servers.
Analytics — exactly what we collect
To understand which tools are useful, we record an anonymous usage event when a calculator page is opened. The complete event is: the calculator's name, the country and city the request came from (as estimated by our hosting provider), and the time. That's the whole list.
We do not store your IP address, your inputs, your results, or any identifier that could link an event to you — the events cannot be traced back to a person, and we honor your browser's Do Not Track setting by not sending the event at all.
Advertising
We may display advertising to support the Site. Third-party ad partners may use cookies or similar technologies to serve relevant ads and measure their performance, in accordance with their own privacy policies. Where required, we will present a consent choice before non-essential cookies are set.
Cookies
We use minimal cookies or local storage for essential features such as remembering your light/dark theme preference. You can clear these at any time through your browser settings.
Your choices
Because we don't collect personal accounts or store your inputs, there's very little personal data for us to hold. For questions about privacy, contact us at privacy@numexa.net.
Changes
We may update this policy as the Site evolves. The "last updated" date above reflects the most recent revision.