Why it exists
Buying shoes online means guessing a size. Size charts ask you to measure with a ruler you may not have, convert between US, UK and EU sizes yourself, and still wonder whether a brand runs small. shoesize.app does the measuring and the converting for you, and shows what each brand’s own chart says.
How it works
- Your foot is measured against a sheet of A4 or Letter paper, or you type its length.
- The length is turned into a size in every common system using the published size tables.
- Brand sizes come from the brands’ own charts (51 brands), each linked, never estimated.
What we promise
- Private: your photo never leaves your phone, and there are no accounts.
- Exact about sources: every size comes from a table or chart we link to, with the date we checked it.
- Independent: we aren’t affiliated with any shoe brand or shop. Brand names appear in text only, to say which chart a size comes from.
- Free: the site will be paid for by ads, never shown in the measuring tool or the result.
Contact
Spotted a size that doesn’t match a brand’s chart, or have a question? Email hello@shoesize.app.
More about the site
Last reviewed 22 October 2026