EU 40 to UK shoe size
EU 40 is UK 6.5, a foot length of 25 cm. Convert any other size below, or see the full EU to UK chart.
EU sizes near 40
| EU | UK | Foot (cm) |
|---|---|---|
| 38.5 | 5.5 | 24.1 |
| 39 | 6 | 24.5 |
| 40 | 6.5 | 25 |
| 40.5 | 7 | 25.4 |
| 41 | 7.5 | 25.8 |
EU 40 and UK 6.5 both correspond to a foot length of 25 cm, which is the one measurement that does not change between systems. If you know your foot length directly, you can confirm the size without converting at all.
For every other EU size, see the full EU to UK shoe size chart, or measure your foot with how to measure shoe size.
Common questions
What is EU 40 in UK shoe size?
EU 40 is UK 6.5. Both sit on the same foot length of 25 cm.
Does EU 40 differ for men and women?
No. EU uses one number for both, so EU 40 is the same size for men and women. The equivalent UK size covers both, shown as separate men's and women's numbers where UK is US.
What if I am between two sizes?
Size up. A slightly long shoe is more comfortable than one that is too short, and you can adjust the fit with insoles or thicker socks.
Last reviewed and updated on July 2, 2026. Conversion tables are checked against published international sizing standards.