About WhatShoeSize

WhatShoeSize started because converting shoe sizes between brands and regions kept sending me to half a dozen different sites — each with a single static chart, none of them telling me whether the specific model I wanted to buy ran true to size.

This site does three things: (1) converts between brands and regions using foot length in cm as the anchor — more accurate than chained US/UK arithmetic; (2) tells you, for popular models, whether to size up, down, or stay true based on what real buyers report; (3) cites the discussion threads each fit verdict is summarized from, so you can read the source.

The site is independent. We are not affiliated with Nike, Adidas, Air Jordan, New Balance, or any other brand mentioned. Brand names appear for comparison only.

Found a bad fit recommendation or an outdated chart? Tell us and we'll fix it.