Last updated: August 2026
The short version: our calculators don’t collect your measurements, and we’d rather explain exactly why than ask you to trust a badge.
What the Calculators Do With Your Numbers
Every calculator on this site (Main, Sister Size, AI Smart Fit, Global Converter, Brand Decoder, and every segmented tool) runs entirely in JavaScript inside your browser. When you type a measurement and press calculate, the math happens on your device — nothing is sent to our servers, saved in a database, or shared with a third party. Close the tab and it’s gone.
What Our Hosting Provider Sees
Like virtually every website, our web host automatically logs basic technical information for security and uptime purposes — things like IP address, browser type, and page requested. This is standard server-log data, not something we actively collect or analyze about individuals, and we don’t currently run any third-party analytics or advertising trackers on this site.
Cookies
The calculators themselves don’t use cookies. If that changes (for example, if we add an optional “remember my last unit” preference), this policy will be updated first.
Contact Forms & Email
If you email us through Contact, we receive whatever you choose to write. We use it only to respond to you and don’t add you to a mailing list without asking first.
Changes to This Policy
If our practices change — for example, when the app in development launches — we’ll update this page and note the date at the top.
Questions
Email hello@bra-sizecalculator.com with any privacy question.