Last updated: November 4, 2026
This Privacy Policy explains how FOC – Free Online Calculators (“FOC”, “we”, “us”) collects, uses and protects information when you visit our website. By using the site you agree to the practices described here.
Information we collect
Information you give us. If you contact us through our contact form, we receive the name, email address and message you submit. We use it only to reply to you.
Automatically collected information. Like most websites, our server and our service providers may log technical information such as your IP address, browser type, device type, pages visited and the date and time of your visit. We use this information to keep the site secure, fix problems and understand how the site is used.
Calculator inputs
The values you type into our calculators are processed in your own web browser. We do not receive, store or sell these numbers.
Cookies
Cookies are small text files stored on your device. We and our partners use cookies to make the site work, to remember basic preferences and to show and measure advertising. You can control or delete cookies in your browser settings. Blocking some cookies may affect how parts of the site work.
Advertising and Google AdSense
We use Google AdSense to display ads. Third-party vendors, including Google, use cookies to serve ads based on a user’s prior visits to this website and other websites. Google’s use of advertising cookies enables it and its partners to serve ads to you based on your visit to our site and/or other sites on the Internet.
You can opt out of personalized advertising by visiting Google Ads Settings. You can also visit aboutads.info to opt out of some third-party vendors’ use of cookies for personalized advertising. To learn more about how Google uses data, see How Google uses information from sites or apps that use our services.
Third-party websites
Our pages may contain links to other websites. We are not responsible for the privacy practices or content of those sites, and we encourage you to read their policies.
Children’s privacy
FOC is not directed to children under 13, and we do not knowingly collect personal information from children. If you believe a child has given us personal information, please contact us and we will delete it.
Your rights
Depending on where you live (for example, the European Economic Area, the United Kingdom or California), you may have the right to request access to, correction of, or deletion of your personal information, and to object to certain processing. To make a request, please use our Contact page.
Data retention and security
We keep contact messages only as long as needed to respond and for reasonable record-keeping. We use reasonable technical measures to protect the site, but no method of transmission over the Internet is completely secure.
Changes to this policy
We may update this Privacy Policy from time to time. The “Last updated” date at the top shows when it was last changed. Continued use of the site after changes means you accept the updated policy.
Contact us
If you have questions about this Privacy Policy, please reach us through our Contact page.