Privacy Policy

Last updated November 4, 2026.

Your calculations stay on your device

Every calculator on this site runs entirely in your web browser. The values you type are not sent to our servers, stored, or shared.

Hosting logs

Like any website, our hosting provider records basic technical information when a page is requested, such as your IP address, browser type and the page you visited. These logs are used for security and to keep the site running, and are deleted on the provider's normal schedule.

Analytics

We use Google Analytics and Microsoft Clarity to understand which calculators are popular and how people use the site. These services use cookies and collect usage data such as pages viewed, clicks, scrolling and general device and location information. Clarity also records anonymized session replays; all page text, including the numbers you enter and your results, is masked before anything is sent. We do not sell personal information. Learn more in Google's Privacy Policy and the Microsoft Privacy Statement.

Changes

If this policy changes, we'll update the date at the top of this page.