What we collect, what we don't, and how advertising on this site works.
The measurements you enter into our bra size calculator are never sent to our servers — the calculation happens entirely in your browser. Like most free websites, we use advertising to cover hosting costs, and our advertising partners use cookies. This page explains exactly what that means.
When you enter your underbust and bust measurements into the calculator on this site, that data stays in your browser. We do not transmit, store, or have access to the measurements you enter. If you use the "Measurement History" feature, your past results are saved only in your own browser's local storage (localStorage) — not on any server we control, and not visible to us. You can clear this at any time using the "Clear" button in that section, or by clearing your browser data.
This site is free to use and is supported by advertising. To do this, we work with the following third-party services, which may set cookies or use similar tracking technologies in your browser to serve and measure adverts:
| Service | Purpose | More information |
|---|---|---|
| Google AdSense | Displays adverts, may use cookies for ad personalisation | Google's advertising policy |
| Third-party ad networks | Displays additional adverts on some pages | Standard third-party ad cookies, similar to Google AdSense |
You can control or opt out of personalised advertising cookies through your browser settings, or via Google Ads Settings for Google's own ads.
Because we don't collect personal data server-side for the calculator itself, most UK GDPR data-subject requests won't apply to information we hold, since we don't hold it. If you contact us directly (for example, by email), we'll only use that information to respond to you, and you can ask us to delete our record of that correspondence at any time.
This site includes general guidance suitable for teenagers researching their first bra size, written in a non-clinical way for a general audience. We don't knowingly collect personal data from children, and the calculator itself doesn't require any personal information to use.
We may update this policy from time to time, for example if we add a new advertising partner. The "last updated" date at the top of this page will reflect the most recent change.
Questions about this policy can be sent to hello@brasizecalculatoruk.co.uk, or via our contact page.