International Shoe Size Converter
Convert shoe sizes between US, EU, UK, JP, and CN systems. Supports men's and women's sizes with foot length reference.
Quick Answer
US Men's 9 = EU 42.5 = UK 8.5 = JP 27 = 27cm foot length. Sizes vary by brand, so always check the specific brand's chart.
Convert From
Converted Sizes
9
US Men's
10.5
US Women's
42.5
EU
8.5
UK
27
JP
42.5
CN
27cm
Foot Length
About the Shoe Size Converter
Shoe sizing systems differ around the world, making international shopping confusing. The US, EU, UK, Japan, and China each use different scales with different starting points and increments. This converter maps between all major systems so you can find your size in any format. The foot length in centimeters provides the most universal measurement.
Understanding Shoe Size Systems
US sizes use a Brannock device scale with separate men's and women's numbering. Women's sizes are typically 1.5 sizes larger than men's for the same foot length. EU sizes use the Paris Point system where each size represents 6.67mm. UK sizes are similar to US but offset by about half a size for men. Japanese sizes are simply the foot length in centimeters. Chinese sizes generally follow the EU system.
Tips for Accurate Sizing
Measure your foot in the afternoon when feet are slightly swollen. Stand on a piece of paper, trace your foot, and measure from heel to longest toe. Compare this measurement to the foot length column. Remember that sizes vary between brands and even between models from the same brand. When ordering online from international retailers, check the brand-specific size chart rather than relying solely on generic conversion tables.