Privacy Policy

Last updated: November 2026.

The short version

TeacherCalc's calculators run entirely in your browser. The scores, grades and text you type into them are not sent to us, not stored and not linked to you. This site has no accounts, no sign-ups and no grading database.

Information we collect

Like most websites, our hosting and analytics providers automatically record standard technical information when you visit, such as your browser type, device type, approximate location derived from your IP address, and the pages you view. We use this aggregate information to understand which tools are used and to keep the site working. We do not collect names, student records or the contents of any calculation.

Cookies

TeacherCalc itself sets only the cookies needed for the site to function and to remember simple preferences such as display settings. Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to this website or other websites. Google's use of advertising cookies enables it and its partners to serve ads to our users based on their visit to this site and/or other sites on the Internet. Users may opt out of personalised advertising by visiting Google's Ads Settings at https://www.google.com/settings/ads, or by visiting https://www.aboutads.info for broader industry opt-outs.

Advertising

We use Google AdSense to display advertising, which helps keep the calculators free. AdSense may use cookies and similar technologies as described above. We do not sell personal information to advertisers or to anyone else. Advertising partners receive only the technical information their systems need to select and measure ads.

Analytics

We may use privacy-respecting analytics to count visits and tool usage in aggregate. Analytics data is used to decide which tools to improve and is not used to identify individual visitors.

Children's privacy

TeacherCalc is a general-audience tool site. We do not knowingly collect personal information from children. Because calculators process grades locally in the browser, no grade information about any student, of any age, reaches us.

Your choices

You can block or delete cookies in your browser settings, opt out of personalised advertising through the links above, and use every calculator on this site without providing any personal information at all.

Changes and contact

If this policy changes, the updated version will be posted on this page with a new date. Questions about privacy can be sent through the contact page or to hello@teachercalc.com.