Privacy Policy

Last updated: May 26, 2026

This Privacy Policy describes how HumanCalculations.com ("HumanCalculations," "we," "us," or "our") collects, uses, and protects information when you use our website at humancalculations.com (the "Site"). By using the Site, you agree to the practices described below.

1. Information We Collect

Information you do not provide. Our calculators run entirely in your browser. You do not need to create an account or submit personal information to use them. The numerical inputs you type into a calculator are not transmitted to our servers and are not stored on our side.

Information collected automatically. When you visit the Site, our hosting provider and analytics tools automatically receive standard log data, including your IP address, browser type and version, operating system, referring page, pages viewed, and timestamps. This information is used to operate, secure, and improve the Site.

2. Cookies and Similar Technologies

A cookie is a small text file placed on your device when you visit a website. We and our third-party partners (described below) use cookies and similar technologies for analytics, site functionality, and advertising. You can disable cookies in your browser settings, though some features of the Site may not work as expected if you do.

3. Analytics

We use Google Analytics 4 to understand how visitors use the Site so we can improve it. Google Analytics collects information such as how often users visit the Site, what pages they view, and what other sites they used prior to coming to the Site. We use this information only to improve the Site. You can read more about Google's practices at policies.google.com/privacy and opt out at tools.google.com/dlpage/gaoptout.

4. Third-Party Advertising

HumanCalculations.com may display advertisements served by Google AdSense and other third-party ad networks. These third-party vendors, including Google, use cookies (such as the DoubleClick DART cookie) to serve ads based on a user's prior visits to our website and other websites on the internet.

  • Google's use of advertising cookies enables it and its partners to serve ads to our users based on their visit to our sites and/or other sites on the internet.
  • Users may opt out of personalized advertising by visiting Google Ads Settings.
  • Users may opt out of some third-party vendors' use of cookies for personalized advertising by visiting aboutads.info/choices or, in the EU, youronlinechoices.eu.

Third-party ad servers or ad networks use technology to send the advertisements and links that appear on HumanCalculations.com directly to your browser. They automatically receive your IP address when this occurs. Other technologies (such as cookies, JavaScript, or web beacons) may also be used by the third-party ad networks to measure the effectiveness of their advertisements and/or to personalize the advertising content that you see.

HumanCalculations.com has no access to or control over these cookies that are used by third-party advertisers. You should consult the respective privacy policies of these third-party ad servers for more detailed information on their practices.

5. How We Use Information

We use information collected through the Site to:

  • Operate, maintain, and improve the Site and our calculators;
  • Understand aggregate usage trends and improve content;
  • Detect, prevent, and address technical issues and abuse; and
  • Display relevant advertising (where applicable).

6. Data Sharing

We do not sell your personal information. We share data only with:

  • Service providers that help us operate the Site (such as Google Analytics and our hosting provider), bound by contractual data-protection obligations;
  • Advertising partners (such as Google AdSense) as described in Section 4; and
  • Authorities, when required by law or to protect our rights and safety.

7. Your Rights (GDPR, CCPA, and Others)

Depending on where you live, you may have rights to access, correct, delete, or restrict processing of your personal information, and to object to processing. EU/UK residents have rights under the GDPR; California residents have rights under the CCPA/CPRA, including the right to know what personal information is collected and the right to opt out of the "sale" or "sharing" of personal information. To exercise any of these rights, contact us at support@humancalculations.com.

8. Children's Privacy

The Site is not directed to children under 13, and we do not knowingly collect personal information from children under 13. If you believe a child has provided personal information to us, please contact us so we can delete it.

9. Security

We take reasonable measures to protect information collected through the Site. However, no method of transmission over the internet or electronic storage is 100% secure, and we cannot guarantee absolute security.

10. Changes to This Policy

We may update this Privacy Policy from time to time. When we make material changes, we will update the "Last updated" date at the top of this page. Continued use of the Site after changes are posted constitutes acceptance of the revised Policy.

11. Contact

Questions about this Privacy Policy or our data practices can be sent to support@humancalculations.com.