Privacy Policy

Privacy Policy

This Privacy Policy explains what information Period Calculator may collect, how it may be used, and how users can better understand the site’s basic data practices. Last updated: March 2026.

What information may be collected

When you use this website, limited technical or usage information may be collected automatically. This can include browser type, device type, approximate location, pages visited, referral source, and general on-site behavior.

If you contact us directly, we receive the information you choose to include in your message, such as your name, email address, and any details you decide to send.

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How information may be used

Information may be used to:

  • operate and improve the website
  • understand which pages, tools, or guides are most useful
  • respond to support, correction, or contact requests
  • maintain site security and reliability
  • measure site performance and user experience

Calculator inputs and privacy

The tools on this site are designed as simple utility pages and do not currently require user accounts to use core calculator features.

Calculator inputs are intended to support on-page estimation and usability. If the site later introduces saved results, accounts, preferences, or more advanced tracking features, this policy may be updated with more specific details.

Cookies and analytics

This website may use cookies, analytics tools, or similar technologies to understand how visitors use the site and to improve performance, usability, and content quality.

Most browsers allow users to control cookies through browser settings. If you want more control, you can review those settings directly in your browser.

Your choices

Most browsers allow users to control cookies through browser settings. You can also choose whether to contact us directly and what information to include in any message you send.

If you want to ask a privacy-related question or request review of something you submitted directly by email, please use the Contact page.

Third-party services

We may use third-party services such as analytics providers, hosting providers, performance tools, advertising services, or affiliate platforms. Those services may process information according to their own privacy policies and practices.

If you click an affiliate link, interact with an advertisement, or move to a third-party platform or service, that provider may collect information under its own policies rather than this one.

Data security

Reasonable steps may be taken to help protect the website and the information processed through it. However, no system, website, or method of transmission can be guaranteed to be completely secure.

Children’s privacy

This website is not intentionally designed to collect personal information from children. If you believe information has been provided inappropriately, you can contact us and request review.

Policy updates

This Privacy Policy may be updated from time to time as the site evolves, including if analytics, advertising, affiliate integrations, or user features become more specific or more advanced.

The most current version of the policy will be the version published on this page.

Questions about privacy

If you have questions about this page or want to contact us regarding privacy, please use the Contact page.