US vs UK vs EU Shoe Sizes: Complete Conversion Guide (Size 7, 8, 9)
Don't let foreign sizing charts ruin your online shopping. Learn the precise conversion formulas between US, UK, and EU systems to shop with confidence.
Online international shopping has opened up a world of limited-edition kicks and better deals. But with great variety comes the great confusion of international sizing. Is a European 42 the same as a US 9? Why is a UK 8 larger than a US 8? Understanding these nuances is the key to avoiding the dreaded return process.
1. The US vs. UK Divide
The biggest trap for many is the difference between US and UK sizes. While they use similar numbers, they are offset by one full size. A general rule of thumb for men is: US Size - 1 = UK Size. So, if you are a US 11, you are a UK 10. For women, the gap is often even wider, sometimes up to two sizes depending on the brand. Always double-check which '8' you are clicking on!
2. The Complexity of EU Sizing
European sizing (EU) is often preferred by luxury brands and higher-end sneaker manufacturers. Unlike the 10mm increments we are used to in Asia or the half-size increments in the US, EU sizes move in smaller, more precise steps called 'Paris points.' This is why you'll often see conversions like 270mm being an EU 42.5 or 42 2/3. This precision allows for a more tailored fit if you know your exact centimeter measurement.
3. Three Steps to a Perfect Fit Every Time
- Measure in Centimeters: Sizing systems may change, but the metric system is universal. Check the CM or JP label on your current best-fitting shoes.
- Consult the Official Brand Chart: Never rely on a third-party retail chart. Go directly to the manufacturer's website.
- Read the 'Fit' Reviews: Look for keywords like 'runs small' or 'runs large' in the customer feedback section. Other shoppers' pain can be your gain.
Summary: The Shopper's Manifesto
When in doubt, choose the slightly larger size. It is much easier to fix a shoe that is 5mm too big with a thick sock or an extra insole than it is to stretch a shoe that is physically too short. Stop guessing and start measuring—your feet will thank you.