Last updated: 1 October 2026
The short version
The numbers you type into our calculators never leave your device. All calculations happen in your browser, and we do not store, transmit or sell them.
Analytics
We use Umami, a self-hosted, cookie-free analytics tool, to count page views and understand which calculators are useful. It records anonymous information such as the page visited, referring website, browser type and country. It does not use cookies and does not build profiles of individual visitors.
Preferences
Your choice of light or dark theme is saved in your browser’s local storage. You can clear it at any time from your browser settings.
Advertising
We may show advertisements in the future, for example through Google AdSense. If we do, third-party vendors may use cookies to serve ads based on your prior visits. We will update this policy before that happens, including how to opt out.
Contact
Questions about privacy? Email hello@nomadnums.com.