Privacy Policy

Last updated: August 2026

CupMath ("we", "us") operates this website. This page explains what information is collected when you visit, and how it's used.

Information we collect

We don't require accounts and don't ask for personal information. The calculator runs entirely in your browser — the amounts you type are never sent to our servers. Like most websites, our hosting provider may log standard technical data (IP address, browser type, pages visited) for security and performance.

Advertising and cookies

We use Google AdSense to display advertising, which is how the site stays free. Google and its partners use cookies to serve ads based on your prior visits to this and other websites. Specifically:

• Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website or other websites.
• Google's use of advertising cookies enables it and its partners to serve ads to you based on your visit to this site and/or other sites on the Internet.
• You may opt out of personalized advertising by visiting Google Ads Settings, or opt out of some third-party vendors' cookies at www.aboutads.info.

Where required (for example in the EEA and UK), a consent message is shown before any advertising cookies are set, and you can decline personalized ads.

Analytics

We may use privacy-respecting, aggregate analytics to understand which pages are useful. No analytics data is sold or used to identify individual visitors.

Children

This site is a general-audience reference and does not knowingly collect data from children.

Changes and contact

Any changes to this policy will be posted on this page with an updated date. Questions? Contact us.