Clothing and shoe size converter for AU, UK, US, CA and EU
Find your best clothing and shoe size match before you buy. SizeSwapper compares official brand size guides, AU, UK, US, CA and EU sizing, and your own measurements — the strongest fit guidance available, short of trying it on. Get a confidence rating and between-size advice, so you shop faster with less guesswork and fewer wrong-size returns.
Popular examples- AU 12 → US 8
- Zara M → ASOS 10
- EU 39 → US 8
- Between sizes? We guide you to tighter or roomier fits
Privacy policy
Last updated: 25 June 2026.
What SizeSwapper stores
SizeSwapper is designed so you don't have to create an account or hand over personal information to use it. The only information saved is stored locally in your own browser, never on our servers:
- Your recent conversions — up to 10 of your most recent results (the brands, sizes, and category compared) so you can find them again without redoing the search. This is stored only on the device you used, not synced anywhere.
- Your unit preference — whether you last used centimetres or inches, so the site remembers your choice next visit.
If your browser blocks local storage, these preferences simply don't persist between visits — the tool still works normally.
What SizeSwapper does not do
- We do not store the body measurements you type in (bust, waist, hip, inseam, foot length) anywhere — not in your browser's saved history, not in shared links, and not on our servers. They exist only in the page while you're using the calculator.
- We do not accept measurements through a shared link's URL, even if someone tries to construct one manually — the site strips them out automatically.
- We do not require sign-up, login, or any personal contact details to use the converter.
Links you share or copy
The “copy link” and “share” buttons create a link containing only your selected brands, sizes, region, and category — never your typed-in body measurements — so it's safe to share without exposing personal information.
Cookies and advertising
SizeSwapper may display advertising served by Google AdSense. Google and its advertising partners may use cookies or similar technologies to serve ads based on your visits to this and other websites. You can opt out of personalised advertising through Google's Ads Settings or by visiting aboutads.info.
We also use Google Analytics to understand which pages and tools are used, so we can improve the site. This data is aggregated and is not used to identify you personally.
Outbound and affiliate links
Some links to brand websites on SizeSwapper are affiliate links, meaning we may earn a commission if you make a purchase after clicking through — at no extra cost to you. See our affiliate disclosure for details. We don't control how those third-party sites handle your data once you leave SizeSwapper; check their own privacy policies if you have concerns.
Changes to this policy
If this policy changes, we'll update the date at the top of this page. Continued use of SizeSwapper after a change means you accept the updated policy.
Contact
Questions about this policy can be sent through our contact page.