Legal

Privacy Policy

Last updated: October 10, 2026

Information you enter

Calculator inputs, such as dates of birth, are used to produce the requested result. Do not submit information you do not want processed. Some features may send a request to our servers to provide results. Shared result links may include the dates needed to reproduce a calculation in the URL.

Cookies and preferences

We may store a country selection in a cookie so the site can remember your preference. Your browser may also provide approximate country information to help personalize certain results. You can manage or remove cookies through your browser settings.

Service providers and logs

We use hosting and infrastructure providers to operate the website. Those providers may process technical information, such as IP address, device and browser details, and request logs, as needed to deliver, secure, and maintain the service. We do not sell personal information submitted to the calculators.

Data retention and your choices

We retain information only for as long as needed for the purposes described above or as required to operate and protect the service. You can avoid saving a preference by disabling cookies in your browser. Because we do not ask for an account to use the calculators, we may not be able to identify a particular submission for access or deletion requests.

Changes to this policy

We may update this policy when our practices or services change. The revised date at the top of this page indicates when it was last updated.