Last updated: March 22, 2026
Welcome to Biorhythm Calculator ("we", "our", or "us"). We are committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information when you visit our website.
Biorhythm Calculator is a free tool that requires no account registration or login. The only information you provide is your date of birth, which is used solely to calculate your biorhythm cycles. This information is processed entirely in your browser and is never sent to or stored on our servers.
We may automatically collect certain non-personal information when you visit our site, including:
We use the information we collect to:
We use Google AdSense to display advertisements on our website. Google AdSense uses cookies and web beacons to serve ads based on your prior visits to our website or other websites on the internet. Google's use of advertising cookies enables it and its partners to serve ads based on your visit to our site and/or other sites on the internet.
You may opt out of personalised advertising by visiting Google Ads Settings or by visiting aboutads.info.
We use Google Analytics to understand how visitors use our website. Google Analytics collects information such as how often users visit, what pages they visit, and what other sites they used prior to coming to our site. We use this information to improve our website. Google Analytics collects only the IP address assigned to you on the date you visit, not your name or other identifying information.
Our website uses cookies — small text files stored on your device — to enhance your experience and enable certain features. We use the following types of cookies:
You can control cookies through your browser settings. Disabling cookies may affect some features of our website.
Our website may contain links to third-party websites. We have no control over the content or privacy practices of those sites and encourage you to review their privacy policies before providing any personal information.
Our website is not directed to children under the age of 13. We do not knowingly collect personal information from children under 13. If you believe we have inadvertently collected such information, please contact us immediately so we can delete it.
Depending on your location, you may have the right to access, correct, or delete any personal data we hold about you. Since we do not store personal data on our servers, there is generally no data to access or delete. For any privacy-related requests, please contact us at the email address below.
We may update this Privacy Policy from time to time. We will notify you of any changes by updating the "Last updated" date at the top of this page. Your continued use of our website after any changes constitutes your acceptance of the new Privacy Policy.
If you have any questions about this Privacy Policy, please contact us at: our contact page.