Effective Date

This Privacy Policy is effective as of March 18, 2026 and was last updated on March 18, 2026.

Information We Collect

Online-Calculator.work is designed with privacy first. All calculations run entirely in your browser — no personal data is sent to our servers.

• No Account Required — You do not need to register or log in to use any calculator.
• No Personal Data Collected — We do not collect names, email addresses, or any personally identifiable information through our calculators.
• Local Storage — Some calculators may use your browser's local storage to remember your preferences (such as theme selection). This data stays on your device and is never transmitted to us.

Cookies and Tracking Technologies

Our site may use the following types of cookies:

• Essential Cookies — Minimal cookies necessary for site functionality, such as theme preference storage.
• Advertising Cookies — Our advertising partners, including Google AdSense, may use cookies to serve personalized ads based on your browsing history. These cookies are set by third parties, not by Online-Calculator.work.

Third-Party Advertising

We use Google AdSense to display advertisements on our site. Google AdSense may use cookies and web beacons to collect information about your visits to this and other websites in order to provide relevant advertisements.

• Google's use of advertising cookies enables it and its partners to serve ads 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.
• You can also opt out of third-party vendor cookies by visiting the Network Advertising Initiative opt-out page.

For more information about how Google uses data, please visit Google's Privacy & Terms page.

Data Security

All pages on Online-Calculator.work are served over HTTPS. Since we do not collect or store your personal data on our servers, there is no personal data at risk of breach.

Children's Privacy

Online-Calculator.work does not knowingly collect personal information from children under 13. Our calculators are educational tools suitable for all ages, and no registration or personal data is required to use them.

Your Rights

Depending on your jurisdiction, you may have the following rights:

• Right to opt out of personalized ads — Use the links in the third-party advertising section above.
• Right to clear local data — You can clear your browser's local storage and cookies at any time through your browser settings.
• GDPR / CCPA rights — Since we do not collect personal data, there is no data to access, correct, or delete. For advertising cookie preferences, use the opt-out links above.

Changes to This Policy

We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated effective date. We encourage you to review this policy periodically.

Contact Us

If you have any questions about this Privacy Policy, please contact us.