Convert shoe sizes between US, UK, EU, Japan and foot length.
All shoe sizing systems trace back to foot length, measured by the Brannock device. Men's US sizes follow: US = (length_in_inches × 3) − 22; women's replace 22 with 20.5. EU (Paris points) is approximately US_men + 33 for men and US_women + 31 for women. UK is US − 1 for men and US − 2.5 for women. Japanese mondopoint is simply the foot length in millimetres rounded to the nearest 5.
US size from foot length
US size = (foot length in inches × 3) − 22 (men) or − 20.5 (women)
US women's sizes run about 1.5 sizes larger than men's for the same foot length because they originated on separate lasts with different scale offsets. A woman's US 9 ≈ a man's US 7.5.
EU sizes use Paris points, where 1 Paris point = 2/3 cm. An EU 44 corresponds to a foot length of roughly 28 cm (44 × 2/3 − some offset for the last). The 'EU' system is also called 'Continental European' and is used across most of Europe.
Very close — JP mondopoint is the foot length in millimetres rounded to 5 mm, so JP 270 means a 27 cm (270 mm) foot. It's one of the most intuitive systems because it directly measures the body.
Enter 26.8 in the 'Foot Length (cm)' input. The calculator shows your US, EU, UK and JP sizes. When in doubt between two sizes, size up — especially for running shoes.