Privacy Policy

Calculator inputs

The numbers you enter are processed in your own browser. The calculator does not send those numbers to our server or to an external calculation service. It does not save calculation history, create accounts, or store your inputs in cookies or browser storage.

Copying results

When you select Copy result, the page asks your browser to write the calculation text to your device's clipboard. Copying does not send the result to us.

Website requests

Your browser requests the site's HTML, styles and scripts to display the page. Our hosting provider, Cloudflare, may process technical information such as your IP address, request time, requested URL and browser information to deliver and protect the website. This is separate from the numbers entered into the calculator.

Cookies and analytics

The site currently includes no advertising scripts or analytics scripts. The calculator does not set cookies. This statement concerns this site's own code, not websites reached through its external links.

Future third-party advertising

We plan to add third-party advertising in the future. No third-party advertising is active on this version of the site. Before enabling it, we will update this policy to identify the services used and explain their data practices, including any cookies, advertising identifiers and available privacy choices.

Contact messages

If you contact us by email, your email provider and the providers handling delivery will process the message and email addresses. Messages sent to [email protected] are forwarded through Cloudflare Email Routing to our Gmail inbox. We use the messages we receive to respond to your enquiry. Do not send passwords, payment details or other sensitive information.

External links

Links to preset sources lead to other websites. Their own privacy policies apply when you visit them.

Changes to this policy

We will update this page when the site's data practices change.