Your privacy
Privacy notice
Your measurements are personal. Our tools are built so that they stay in your browser.
Last updated 19 October 2026.
Who is responsible for your data
My Bra Size is run by Jenisha Jonchhe, based in New York, USA, who is the controller of any personal information described here. Contact: info@mybrasize.co.uk.
Measurements and fit-checker answers
- The calculator, size chart, sister size calculator, converter and fit checker all run in your web browser.
- We do not store your measurements or answers, send them to our servers or any third party, or put them in web addresses.
- When one tool passes your result to another, only the size label (such as 32DD) is passed, after the “#” in the address. Browsers do not send that part of an address to websites.
- Closing or reloading the page clears what you entered.
Cookies, analytics and advertising
We do not set cookies, and we do not use analytics, advertising, session-recording or social media tracking tools. Our fonts are served from our own website. If that ever changes, we will update this notice first and ask for your consent where the law requires it. We will never send measurements or fit-checker answers to those services.
Hosting
The site is hosted by Cloudflare. Like any web host, it receives technical information needed to deliver pages and keep the service secure, such as your IP address, browser type and the page requested.
Contacting us
Our contact form is not active yet, so it does not collect anything.
Links to retailers, brands and Amazon
Brand guides, shopping listings and our buying guides link to other websites. Their own privacy policies apply once you leave our site.
Our buying guides include Amazon UK affiliate links. If you click one, Amazon may set its own cookies and record that you arrived from My Bra Size, so that it can pay us a commission on qualifying purchases. That happens on Amazon’s website, under Amazon’s privacy notice; we do not receive your name, what you buy or any other personal details. The links carry only a search phrase and our Associates ID, never your measurements.
Some buying guides show Amazon product photos. Amazon’s rules require those photos to be loaded from Amazon’s own image servers, so when a guide shows one, your browser requests it from Amazon, which receives your IP address and browser details as with any web request. Nothing about your measurements or size is sent.
Your rights
Under UK data protection law you have rights over your personal information, including access, correction and deletion. Because our tools do not collect your measurements, we hold no record of them. For privacy questions, use our contact page. You can also complain to the Information Commissioner’s Office (ICO) at ico.org.uk.