What you type into our tools
All of our tools, including every calculator, run in your web browser. The numbers you type are not sent to our servers and are not stored by us. If you use “Copy link to these inputs”, the values are placed in the page address so that you can share them; anyone you send the link to can see them.
Analytics
We may use Google Analytics 4 to understand which pages are useful (for example page views and whether a calculation was run). It collects device and usage information through cookies or similar technologies. We do not send your calculator inputs to analytics. You can opt out with Google’s browser add-on or your browser’s privacy settings.
Advertising
We may show ads served by Google AdSense. Google and its partners use cookies to serve ads based on your prior visits to this and other websites. You can opt out of personalized advertising at Google’s Ads Settings (adssettings.google.com) or at aboutads.info. Where required by law, for example for visitors in the European Economic Area, the United Kingdom and Switzerland, we ask for consent through a certified consent management platform before personalized ads are shown.
Server logs
Our hosting provider may keep standard logs (IP address, browser type, time of request) for security and reliability for a limited time.
Children
This site is not directed to children under 13, and we do not knowingly collect personal information from them.
Your rights
Depending on where you live (for example California under the CCPA/CPRA), you may have rights to know, delete or opt out of the sale or sharing of personal information. Because we do not hold calculator inputs or accounts, most requests concern analytics and advertising cookies, which you can control in your browser and through the links above. Contact us at [email protected] with any request.
Changes
We will update the date at the top of this page when the policy changes.