Free Shoe Size Converter - US UK EU CM Chart

Convert shoe sizes between US, UK, EU, CM and JP. Charts for men\

What Is Shoe Size Converter?

Shoe sizing systems differ significantly between countries. The UK, US, EU and Japan each use different scales with different starting points and increments. A UK size 9 is approximately a US size 10, an EU 43 and a Japan 27.5. To make matters more complex, men's and women's sizes use different scales in some systems (notably US), and half sizes are not available in all systems.

Getting the wrong shoe size when ordering online from an international retailer is one of the most common reasons for returns. This converter maps between all major sizing systems and provides the corresponding foot length in centimetres, which is the most objective measurement for determining the right fit.

Men's and women's sizing is free. Premium adds kids' sizing and a Width Guide explaining the standard shoe-width letter system (B through EEE) for narrow or wide feet.

How to Use This Tool

  1. Select men's or women's sizing.
  2. Enter your known shoe size in your local system (UK, US, EU, JP).
  3. View the equivalent sizes in all other systems.
  4. Check the foot length in centimetres for the most accurate sizing.
  5. Use the measurement guide if you need to measure your foot.

Tips & Best Practices

  • Measure your feet in the evening when they are at their largest after a day of walking.
  • Foot length in centimetres is the most reliable measure across all sizing systems — it's also literally what Japanese (JP) sizing uses as its size number.
  • US men's sizes are 1 size larger than UK sizes (UK 9 = US 10). US women's sizes are 2 sizes larger.
  • Shoe width varies significantly between brands — Premium's Width Guide explains the standard letter system (B/D/E etc.) if you have narrow or wide feet.

Common Use Cases

  • Ordering shoes from international retailers with confidence about sizing.
  • Converting between UK, US and EU shoe sizes for online shopping.
  • Finding the right children's shoe sizes across different sizing systems.
  • Understanding Japanese (cm-based) shoe sizing when buying imported footwear.