Privacy Policy
Last updated: September 2026. This policy explains how Calqlatr handles data on this site.
What we collect
We do not collect personal information through the calculators on this site. The tools run entirely in your browser — your inputs, results, and any intermediate values stay on your device and are never sent to a server.
How the calculators work
Each calculator on Calqlatr is a client-side tool written in HTML, CSS, and JavaScript. When you use a tool, your browser does all the math locally. Nothing you type into a calculator field is transmitted anywhere.
This means you can use the calculators without an internet connection after the page has loaded, and you can close the page without anything being stored or tracked on our side.
Cookies and local storage
The site uses localStorage only to remember your light/dark theme preference on your device. This preference is stored on your browser and is not sent to any server. No tracking cookies are set by the calculator pages themselves.
Advertising
Calqlatr displays ads served by Google AdSense. Those ads are provided by Google and are subject to Google's own privacy policy and terms. Calqlatr does not control how ads are selected or what data Google may use for that purpose.
The calculator tools themselves do not send your inputs to any advertising system.
Third-party links
Calqlatr may link to other websites. This policy covers calqlatr.com only. Any site you reach through a link is responsible for its own privacy practices.
Changes to this policy
We may update this policy from time to time. The current version is always on this page. If anything material changes, the updated policy will be posted here with a new "last updated" date.
Contact
If you have a question about this policy, use the contact page.