Shoe sizes differ significantly between countries, and getting the wrong size when buying online can be costly. Our shoe size conversion chart covers UK, EU, US, and international sizes for men, women, and children. UK men's size 9 is equivalent to EU 43 and US men's 10. UK women's size 5 is EU 38 and US women's 7.5. Children's shoe sizes follow a different scale: UK children's size 1 is EU 33 and US children's 2. We also include foot length measurements in centimetres and inches to help you find the most accurate fit when shopping from international shoe retailers.