Privacy Policy

Last updated: July 21, 2026.

Measurements you enter into our tools

Measurements you type into the Quick Calculator, Advanced Calculator, International Converter, Sister Size Calculator or Fit Checker are processed entirely in your browser. They are not sent to our servers, not stored in a database, and not included in analytics. If you choose to save a result on your device in a future version of this feature, that save will live in your browser's local storage until you delete it or clear your browser data - we will not have a copy.

Analytics

We may use privacy-conscious analytics to understand which tools and pages are used, limited to generic events such as "a calculation was started" or "a calculation was completed." These events never include the measurement values you entered, the size you were shown, or any Fit Checker answer.

Cookies

See our Cookie Policy for what cookies, if any, this site sets and why.

Contact information

If you use the contact page once it's connected, any information you submit is used only to respond to your message.

Accounts

This site does not require an account or login to use any tool.

Changes to this policy

If this policy changes in a way that affects how your data is handled, we'll update this page and the "last updated" date above.