📏 What measure do you want to convert to?

I want to convert 12 UK sneakers size to:

Sneakers sizes in the United Kingdom 🇬🇧, Ireland 🇮🇪, India 🇮🇳, Pakistan 🇵🇰 and South Africa is based on the length of the last used to make the sneakers, measured in barleycorns (​1⁄3 inch) starting from the smallest size deemed practical, which is called size zero. It is not formally standardised.

Table of men's sneakers sizes: from 12 UK to another measuring system

1244.51329.546.529511 1/213