An important update

We have replaced the static charts from a previous version of this page with two dynamic size convertors. Our universal size convertor translates all five global sizing standards (US mens, US women’s, UK, EU/FR, and CM) across a dozen brands. You can convert a particular size in adidas into other sizes, as well as convert across brands. This is the first such tool on the internet.

The second tool – which is the foot length translator – converts your actual foot length (in either centimeters or inches) into a brand size. Both these tools will not guarantee a perfect fit due to variances in footwear design and materials, but removes two layers of friction from the tedious sizing process.

A few notes on adidas shoe sizing

Note the half-size difference between the US and UK sizes on an adidas shoe. Brands like Nike and Saucony follow a one size difference.

adidas sizing converts slightly differently compared to most American shoe brands (except New Balance). North American brands use a factor of one between US and UK sizes – meaning a US 10 size converts into a UK 9.

Adidas and New Balance use a conversion factor of a half size between US and UK sizes, so a US 10 converts into a UK 9.5. However, for larger sizes (US 16 and above), the US to UK conversion is rounded to a full size difference. The size conversion standard for US men’s and US women’s also differs from how US brands do it. For example, adidas US 10 mens is adidas US 11 women’s, but Nike follows a 1.5 size equivalent, meaning a Men’s US 10 is US 11.5 women’s.

The ‘JP’ or ‘CM’ size is not to be confused with the actual foot length. To convert your actual foot length (in CM or inches) into brand sizes, use our universal foot length convertor.

But you don’t have to worry about doing the maths; our dynamic convertor does this for you.