Shoe Size Converter · Practical guide
US Shoe Size to EU Conversion
EU sizes are roughly double the US men's size plus 26 — get your exact conversion with the tool above.
At a glance
The Short Answer
For US men's sizes, double the size and add 26 to get the EU equivalent: a US men's 9 becomes 9 × 2 + 26 = EU 44. A US women's 9.5 is an EU 42.
Interactive tool
Shoe Size Converter
Enter your own values, then compare the result with the examples below.
Size Chart
| US Men | US Women | UK | EU | CM |
|---|---|---|---|---|
| 6 | 7.5 | 5.5 | 39 | 24 |
| 7 | 8.5 | 6.5 | 40 | 25 |
| 8 | 9.5 | 7.5 | 41 | 26 |
| 9 | 10.5 | 8.5 | 42 | 27 |
| 10 | 11.5 | 9.5 | 43 | 28 |
| 11 | 12.5 | 10.5 | 44 | 29 |
| 12 | 13.5 | 11.5 | 45 | 30 |
| 13 | 14.5 | 12.5 | 46 | 31 |
Sizes are approximate. Always check manufacturer-specific sizing.
The Math Behind It
The converter works through centimeters. A US men's size maps to foot length in cm by adding 18 (US men's 9 → 27 cm), and the EU size is double the cm minus 10 (27 × 2 − 10 = 44). Women's sizes use an offset of 16.5 instead of 18, which is why a women's 9.5 and a men's 8 both land on 26 cm and EU 42.
US to EU Chart
| US Men | US Women | EU | CM |
|---|---|---|---|
| 7 | 8.5 | 40 | 25 |
| 8 | 9.5 | 42 | 26 |
| 9 | 10.5 | 44 | 27 |
| 10 | 11.5 | 46 | 28 |
| 11 | 12.5 | 48 | 29 |
Why EU Sizes Seem Inconsistent
European brands sometimes size by the shoe last rather than the foot, so an EU 44 from one maker can fit like a 43 from another. Half sizes also barely exist in EU sizing — most brands offer whole sizes only, so if you fall between, many people size up. Treat every conversion as approximate and confirm with the brand's chart.
Frequently Asked Questions
What EU size is a US women's 8?
A US women's 8 corresponds to a foot of about 24.5 cm, which converts to an EU 39. Use the converter above for any half size.
Does the EU have half sizes?
Rarely. Most European brands sell whole sizes only, and the one-centimeter spacing between EU sizes is larger than the gap between US half sizes.
Is EU sizing the same for men and women?
Yes, EU sizes are unisex — the same number covers the same length for everyone, unlike US and UK scales which split men's and women's numbering.
Why does my EU size vary between brands?
Some brands measure the shoe's inner mold rather than the foot, and manufacturing tolerances differ. Always check the brand's own size guide before ordering.