Privacy Policy

Last updated: 2026.

The short version

Every calculator on this site runs locally in your browser. The numbers you type into a calculator — your salary, debts, budget, or anything else — are processed with JavaScript on your own device and are not transmitted to our servers or stored by us.

What we do collect

Like most websites, our hosting provider and any analytics or advertising tools we use (see below) may automatically collect standard technical information such as your IP address, browser type, device type, pages visited, and approximate location derived from your IP. This is common web analytics data, not information you type into a calculator.

Analytics

We use Google Analytics to understand which calculators are useful and how visitors navigate the site — aggregate information like page views, approximate location, device type and referring site. Google Analytics only loads after you accept cookies in the banner shown on your first visit; if you reject or haven't yet made a choice, it does not load. Google's own handling of this data is described in the Google Privacy Policy.

Advertising

This site is designed to display advertising (such as Google AdSense) to support free access to our calculators. Advertising partners may use cookies or similar technologies to serve relevant ads. See our Cookie Policy for details.

Local storage

Some calculators use your browser's local session storage to remember small preferences (like whether you've already seen a popup) for the duration of your visit. This data stays on your device and is not sent to us.

Children's privacy

This site is not directed at children under 13, and we do not knowingly collect personal information from children.

Changes to this policy

We may update this policy from time to time. Continued use of the site after changes are posted constitutes acceptance of the updated policy.

Contact

Questions about this policy? Reach us via our Contact page.