PRIVACY

Privacy policy

Last updated: 24 October 2026

What this site collects

Nothing. The calculator runs entirely in your browser. The numbers you type are held in the page's memory only. There is no account, no sign-in, no upload endpoint, no analytics script, no cookies and no advertising on this page at the time of writing.

Images and files

This calculator does not ask for files. It only takes numbers you type. Nothing you enter leaves your device.

Third-party advertising

This site may display advertising in the future. Third-party vendors, including Google, use cookies to serve ads based on a person's prior visits to this or other websites. Google's use of advertising cookies enables it and its partners to serve ads based on your visit to this site and/or other sites on the internet.

You may opt out of personalised advertising by visiting Google Ads Settings. You can also opt out of a third-party vendor's use of cookies for personalised advertising by visiting aboutads.info.

If advertising is added, this page will be updated before the ads appear. Our own calculator will stay free and will never require an account.

Links to other sites

Where we link to pricing pages or providers, those sites have their own privacy policies. We are not responsible for their practices.

Changes

If this policy changes, the date above changes with it. Material changes will be noted on this page.

Contact

Questions about this policy: contact page.