Last updated: July 2026
Every calculator on this site runs entirely within your own browser using JavaScript. Dates, timestamps, birth dates and any other values you enter into a tool are processed locally on your device and are never transmitted to, or stored on, our servers.
We use Google Analytics to understand aggregate traffic patterns, such as which tools are most visited and general visitor geography. Analytics data is collected by Google according to its own privacy practices and does not include the specific values you enter into any calculator.
This site may display advertising served by Google AdSense. Google and its partners may use cookies to serve ads based on your prior visits to this and other websites. You can opt out of personalized advertising through Google's Ads Settings.
Cookies on this site are used solely for analytics and advertising purposes as described above. No cookie on this site stores the values you enter into any calculator.
Questions about this privacy policy can be sent to hello@idiottools.com.