Privacy Policy
Last updated: October 15, 2026. Short version: we collect nothing.
What we collect
Nothing. CalcHub calculators run entirely in your web browser using JavaScript. The numbers you type are processed on your own device and are never sent to our servers, stored, or shared with anyone. There is no sign-up, no account, and no way for us to identify you.
Cookies and tracking
We do not set cookies and we do not use analytics or tracking tools. If we introduce advertising in the future (for example through Google AdSense), third-party vendors may use cookies to serve ads based on your visits to this and other sites. You can opt out of personalized advertising at Google Ads Settings. We will update this policy before any such change takes effect.
Server logs
Like most websites, our hosting server may record basic technical information (such as IP address, browser type, and requested pages) in standard web server logs for security and maintenance. These logs are not linked to calculator inputs and are not used for profiling.
Children's privacy
CalcHub is a general-purpose math tool and does not knowingly collect information from children. Because we collect no personal data from anyone, there is nothing to delete — but if you believe a child has contacted us with personal information, reach out and we will remove it.
Changes to this policy
If this policy changes, we will post the updated version on this page and revise the date above. Continued use of the site after changes means you accept the updated policy.
Contact
Questions about this policy: contact us.